Meteorite Science Hub

Meteorites Updates: all articles Identification Prices and value Meteors and fireballs Zhob, Pakistan Meteorites updates · Pakistan guide · Sources reviewed 26 October 2026 Zhob is a documented meteorite from Balochistan, Pakistan, that fell on 9 January 2020. The province is also written as “Baluchistan” in older references and in the Meteoritical Bulletin Database. This guide explains the recorded fall, what its H3-4 classification means, and why a fragile stone from this region is useful to planetary science. This is a guide to an established historical fall, with a link to research data released in 2026. It is not an announcement that a new meteorite has fallen today, and it does not identify any reader's specimen as Zhob. Zhob city in a regional-context photograph taken on 8 February 2017, before the meteorite fall. Photograph: Hariskhan1212 , Wikimedia Commons source , CC BY-SA 4.0 . Uncropped; displayed at a responsive size. For photographs of confirmed Zhob meteorite m...

Meteorites Updates: all articles Identification Prices and value Meteors and fireballs Zhob, Pakistan Meteorites updates | Explainer | 26 October 2026 A bright streak crosses the sky. Was it a meteor, a meteorite, a fireball or a shooting star? The clearest answer starts with one distinction: a meteor is the light phenomenon in the atmosphere; a meteorite is material that reaches the ground. Seeing one does not automatically mean that you can find the other. This guide answers the everyday question “meteor vs meteorite” using scientific sources, a real space photograph and a simple diagram. It does not identify any particular recent sighting from a photograph or short description.

Meteorites Updates: all articles Identification Prices and value Meteors and fireballs Zhob, Pakistan Meteorites updates · Explainer reviewed 26 October 2026 How much is a meteorite worth? There is no single meteorite price per gram that fits every specimen. First establish what the object is. Then compare its scientific classification, history, condition and sale context. A spectacular auction result cannot tell you the value of an unidentified rock. This guide explains how to read meteorite prices and avoid misleading comparisons. Historical sale examples are clearly dated; they are not current appraisals or predictions. A documented Martian meteorite slice used in NASA's instrument-development context. This is an educational photograph, not a specimen offered for sale and not the auction lots discussed below. Credit: NASA/JPL-Caltech, image PIA22246. NASA source and description ; JPL image-use policy . No NASA endorsement is implied. In this guide: Identification · Val...

Meteorites Updates: all articles Identification Prices and value Meteors and fireballs Zhob, Pakistan Meteorites updates · Practical guide · Sources checked 26 October 2026 How do you identify a meteorite? Start with careful observations, a record of where the object was found, and comparison with documented specimens. A black surface, unusual weight or magnetic attraction can be a clue, but none proves that a rock came from space. Preserve the object while you decide whether expert examination is worthwhile. This guide explains the clues and helps you preserve useful evidence. It does not identify a reader’s specimen from a photograph. A documented iron meteorite from Barringer Meteorite Crater, shown on a prepared cut face. Meteorites vary: not every meteorite looks like this. This surface is different from an untouched exterior; do not cut or etch a suspected find to copy its appearance. Image credit: NASA. Original image record · Reused for education under NASA’s media usag...

Complete course index · Module 31 · Six written lessons Explore documented sales of iron, lunar and Martian meteorites while learning to read auction evidence critically. Prices below are historical transaction records, not current valuations, investment advice or proof of scientific authenticity. Source checks were made on 26 October 2026. Lesson navigation 31.1 Reading auction records: estimates, hammer prices and buyer premiums 31.2 Documented sales of famous iron meteorites 31.3 Documented sales of lunar and Martian meteorites 31.4 Comparing mass, classification, condition and provenance 31.5 Checking authenticity claims and separating price from scientific value 31.6 Source-based sales case study and review

Complete course index · Module 30 · Six written lessons Bring the programme together in a documented project using an authorized specimen or published reference data. This is an educational assessment framework, not an accredited qualification or authorization to issue official classifications. Lesson navigation 30.1 Selecting a meteorite research topic 30.2 Preparing a research proposal 30.3 Specimen examination or reference-data analysis 30.4 Scientific interpretation and report preparation 30.5 Research presentation and oral defense 30.6 Comprehensive final examination and project evaluation

Complete course index · Module 29 · Six written lessons Meteorites can be scientific samples, collection objects and traded property. These lessons separate those roles and explain the records and responsibilities needed for honest decisions. Lesson navigation 29.1 Scientific value versus commercial value 29.2 Provenance, ownership and authenticity claims 29.3 Responsible meteorite collecting and trading 29.4 Certificates, commercial descriptions and misrepresentation 29.5 National laws, international trade and export requirements 29.6 Professional ethics and communication with the public

Complete course index · Module 28 · Six written lessons A collection preserves both physical material and the information connected to it. These lessons emphasize preventive conservation, documented decisions and specialist care rather than improvised cleaning recipes. Lesson navigation 28.1 Causes of meteorite deterioration 28.2 Corrosion, oxidation and humidity control 28.3 Safe handling, storage and packaging 28.4 Conservation documentation and condition assessment 28.5 Museum collections and digital cataloguing 28.6 Long-term preservation of research specimens

Complete course index · Module 27 · Six written lessons Reliable meteorite work needs a controlled process as well as an instrument. These lessons explain how records, reference materials, staff competence and checks support defensible results. Lesson navigation 27.1 Principles of laboratory quality management 27.2 Standard operating procedures 27.3 Calibration, traceability and reference materials 27.4 Measurement uncertainty and method validation 27.5 Internal quality control and proficiency testing 27.6 ISO/IEC 17025 principles and laboratory competence

Complete course index · Module 26 · Six written lessons A scientific report should let a reader understand the question, assess the evidence and check the work. These six lessons develop a report from its structure to responsible publication. Lesson navigation 26.1 Structure of a scientific research paper 26.2 Writing abstracts and introductions 26.3 Materials, methods and analytical results 26.4 Scientific figures, tables and photographs 26.5 Discussion, conclusions and references 26.6 Peer review and responsible scientific publication

Complete course index · Module 25 · Six written lessons Turn an interesting specimen or dataset into a focused scientific investigation. These lessons teach planning, evidence handling and reproducibility; they do not require destructive testing or access to a private collection. Lesson navigation 25.1 Identifying a research problem 25.2 Scientific literature review 25.3 Research questions and hypothesis development 25.4 Sampling strategies and experimental design 25.5 Data collection and statistical interpretation 25.6 Research ethics and reproducibility

Complete course index · Module 24 · Six written lessons Integrate advanced classification evidence, use current scientific names and interpret published records critically. The final lesson provides a hypothetical classification exercise and Level 4 examination with explanations. Formal naming and classification still require the appropriate scientific evidence and procedures. Lesson navigation 24.1 Modern meteorite taxonomy 24.2 Classification using mineral chemistry 24.3 Oxygen isotopes and multi-method evidence 24.4 Meteorite nomenclature and published records 24.5 Interpreting the Meteoritical Bulletin Database 24.6 Advanced classification exercise and Level 4 examination

Complete course index · Module 23 · Six written lessons Learn how high-speed impacts excavate craters, shock minerals, melt rocks and mix fragments. Distinguish impact products from meteorites themselves, and evaluate proposed terrestrial impact structures using diagnostic evidence rather than circular shape alone. Lesson navigation 23.1 Impact processes and crater formation 23.2 Shock waves and high-pressure mineral phases 23.3 Impact melts and impact breccias 23.4 Tektites, impact glasses and related materials 23.5 Recognizing terrestrial impact structures 23.6 Impact case studies and planetary implications

Complete course index · Module 22 · Six written lessons Investigate the smallest extraterrestrial survivors using careful collection records, microscopy, chemistry and comparison datasets. These lessons explain why a round magnetic grain is only a candidate and why collection bias matters for cosmic-dust research. Lesson navigation 22.1 Definition and sources of micrometeorites 22.2 Cosmic dust and interplanetary particles 22.3 Micrometeorite collection and contamination risks 22.4 Microscopic and chemical examination 22.5 Distinguishing cosmic particles from industrial particles 22.6 Scientific research and micrometeorite datasets

Complete course index · Module 21 · Six written lessons Learn how chemical elements and isotopes connect meteorites with stars, planetary reservoirs and geological events. Work through isotope notation, radioactive decay and cosmic-ray exposure while keeping measured ratios separate from model-dependent interpretations. Lesson navigation 21.1 Introduction to cosmochemistry 21.2 Element formation and Solar System abundances 21.3 Stable isotopes and isotope fractionation 21.4 Radiometric dating and geochronology 21.5 Cosmic-ray exposure ages 21.6 Isotopic evidence for parent-body relationships

Complete course index · Module 20 · Six written lessons Study Martian meteorites as samples of igneous, impact and alteration processes. Separate the evidence for Martian origin from claims about precise source locations, ages or life, and compare laboratory material with spacecraft observations. Lesson navigation 20.1 Geology and evolution of Mars 20.2 Martian meteorite groups and terminology 20.3 Shergottites, nakhlites and chassignites 20.4 Martian atmospheric evidence 20.5 Martian meteorite mineralogy and geochemistry 20.6 Research case studies and origin verification

Complete course index · Module 19 · Six written lessons Investigate lunar geology through meteorites, returned samples and remote observations. Learn how rocks leave the Moon, what highland and mare materials preserve, and why a lunar-origin claim requires several independent lines of evidence. Lesson navigation 19.1 Geology and evolution of the Moon 19.2 Origin and delivery of lunar meteorites 19.3 Lunar highland and mare materials 19.4 Lunar breccias and impact processes 19.5 Mineralogical and geochemical characteristics 19.6 Scientific evidence for lunar origin

Complete course index · Module 18 · Six written lessons Build an accountable examination workflow and communicate observations, interpretations and uncertainty. This module includes a hypothetical laboratory case and a Level 3 self-assessment with explanations; it does not confer laboratory accreditation or classifier authority. Lesson navigation 18.1 Designing a scientific examination workflow 18.2 Separating observations from interpretations 18.3 Evaluating competing identification hypotheses 18.4 Reporting uncertainty and analytical limitations 18.5 Preparing preliminary meteorite examination reports 18.6 Laboratory case study and Level 3 examination

Complete course index · Module 17 · Six written lessons Explore how elemental and isotopic measurements help reconstruct meteorite histories. These lessons emphasize representative sampling, calibration, uncertainty and the need to combine chemistry with mineralogy. Advanced measurements require trained personnel and suitable laboratories. Lesson navigation 17.1 Major, minor and trace elements 17.2 Geochemical characteristics of meteorite groups 17.3 ICP-MS and related analytical methods 17.4 Stable and radiogenic isotope measurements 17.5 Oxygen isotopes and meteorite classification 17.6 Integrating mineralogical and chemical evidence

Complete course index · Module 16 · Six written lessons Understand what electron images and X-ray measurements reveal about meteorite material. These lessons connect microstructure, elemental analysis, calibration and uncertainty without treating any instrument as an automatic meteorite detector. Lesson navigation 16.1 Principles of scanning electron microscopy 16.2 SEM imaging and microstructural examination 16.3 Energy-dispersive X-ray spectroscopy 16.4 Electron probe microanalysis 16.5 X-ray fluorescence and elemental screening 16.6 Analytical errors, calibration and quality control

Complete course index · Module 15 · Six written lessons Choose physical and structural tests according to the scientific question, specimen condition and measurement limits. Worked calculations use invented teaching data; actual measurements require suitable methods, controls and supervision. Lesson navigation 15.1 Accurate mass and dimensional measurements 15.2 Density and specific gravity methods 15.3 Magnetic susceptibility and magnetic response 15.4 Hardness, streak and destructive-test limitations 15.5 Raman spectroscopy and X-ray diffraction 15.6 Interpretation of physical and mineralogical results

Complete course index · Module 14 · Six written lessons Learn how stereomicroscopy, reflected light and transmitted polarized light reveal different information. These lessons connect preparation, mineral observations and calibrated images with a report that can be checked by another examiner. Lesson navigation 14.1 Stereomicroscopy of meteorites 14.2 Reflected-light microscopy 14.3 Transmitted-light polarizing microscopy 14.4 Thin sections and polished sections 14.5 Identification of minerals and textures 14.6 Photomicrography and petrographic reporting

Complete course index · Module 13 · Six written lessons Begin the professional-laboratory level with specimen receipt, planning, preservation and records. These lessons teach decisions and documentation; practical equipment use requires local procedures, suitable facilities and demonstrated training. Lesson navigation 13.1 Laboratory safety and risk assessment 13.2 Specimen receipt and registration 13.3 Non-destructive examination procedures 13.4 Sample preparation and contamination control 13.5 Specimen storage and laboratory records 13.6 Standard operating procedures and documentation

Complete course index · Module 12 · Six written lessons Use petrography to describe components, deformation and common lookalikes. The final lesson combines a comparative case study with the Level 2 educational examination and explained answers. Lesson navigation 12.1 Introduction to meteorite petrography 12.2 Chondrules, matrix and brecciation 12.3 Shock features and impact-related deformation 12.4 Terrestrial basalt, magnetite and hematite 12.5 Industrial slag, smelting products and pseudometeorites 12.6 Comparative petrography and Level 2 examination

Complete course index · Module 11 · Six written lessons Explore pallasites and mesosiderites through mineral relationships, chemical evidence and competing formation models. Learn why metal mixed with silicate is scientifically interesting but cannot be identified from appearance alone. Lesson navigation 11.1 Introduction to stony-iron meteorites 11.2 Pallasites and their mineralogy 11.3 Mesosiderites and their formation 11.4 Metal-silicate textures and relationships 11.5 Formation models and parent-body processes 11.6 Identification and classification case studies

Complete course index · Module 10 · Six written lessons Study iron meteorites through their origins, metal phases, chemistry and microstructures. The lessons explain how classification differs from an appearance-based guess and why valuable material should not be casually etched or tested with magnets. Lesson navigation 10.1 Origin and formation of iron meteorites 10.2 Iron-nickel mineralogy and composition 10.3 Chemical classification of iron meteorites 10.4 Structural characteristics and metallography 10.5 Widmanstätten patterns and their interpretation 10.6 Iron meteorites versus terrestrial metallic materials

Complete course index · Module 9 · Six written lessons Investigate rocks that record heating, partial melting, crystallization and differentiation. These lessons distinguish group identification from a proposed parent body and show how textures and measurements work together. Lesson navigation 9.1 Introduction to achondrites 9.2 Primitive achondrites 9.3 HED meteorites: howardites, eucrites and diogenites 9.4 Angrites, aubrites and other achondrite groups 9.5 Magmatic processes and planetary differentiation 9.6 Achondrite textures and classification case studies

Complete course index · Module 8 · Six written lessons Study chondrite components, ordinary H–L–LL groups, carbonaceous and enstatite material, other groups, and the separate meanings of petrologic type, shock and weathering. Exercises emphasize evidence and classification limits. Lesson navigation 8.1 Definition and formation of chondrites 8.2 Ordinary chondrites: H, L and LL groups 8.3 Carbonaceous chondrite groups 8.4 Enstatite chondrites and other recognized groups 8.5 Chondrules, matrix and refractory inclusions 8.6 Petrologic types, shock stages and weathering grades

Complete course index · Module 7 · Six written lessons Begin Level 2 with mineral identity, silicate compositions, iron-nickel phases, sulfides, phosphates and shock-produced minerals. Learn how to use reference specimens and analytical evidence without overstating what an image can prove. Lesson navigation 7.1 Introduction to extraterrestrial minerals 7.2 Olivine, pyroxene and feldspar minerals 7.3 Iron-nickel alloys: kamacite and taenite 7.4 Troilite, phosphates and accessory minerals 7.5 Rare minerals and high-pressure phases 7.6 Mineral identification using reference specimens

Complete course index · Module 6 · Six written lessons Complete Level 1 with lessons on recovery environments, systematic searches, coordinates, clean handling, provenance and an eight-question examination with explanations. Field activities are simulated unless proper access, training and supervision are available. Lesson navigation 6.1 Where meteorites are found 6.2 Meteorite search methods and field safety 6.3 Field observations and GPS documentation 6.4 Recovery techniques and contamination prevention 6.5 Specimen labeling, provenance and chain of custody 6.6 Practical case study and Level 1 examination

Complete course index · Module 5 · Six written lessons Use a systematic workflow to examine suspected meteorites, record photographs and measurements, recognize lookalikes and prepare an honest preliminary worksheet. Exercises use reference material or clearly invented cases. Lesson navigation 5.1 Principles of preliminary identification 5.2 Visual examination and specimen photography 5.3 Magnetism, mass and density measurements 5.4 Recognizing common meteorite features 5.5 Distinguishing meteorites from terrestrial rocks 5.6 Preparing a preliminary identification worksheet

Complete course index · Module 4 · Six written lessons Learn to describe meteorite shape, surfaces, textures, density, magnetism and alteration. Worked examples are teaching calculations, and the activities preserve potentially important specimens. Lesson navigation 4.1 Meteorite shapes and surface characteristics 4.2 Fusion crust and regmaglypts 4.3 Colour, texture and internal structure 4.4 Density, specific gravity and porosity 4.5 Magnetic properties and metallic content 4.6 Weathering, oxidation and surface alteration

Complete course index · Module 3 · Six written lessons Follow the journey from a fragment in space to atmospheric entry, dark flight and recovery. These lessons explain the physics and the limits of photographs, eyewitness reports and predicted fall maps. Lesson navigation 3.1 Origin and movement of meteoroids 3.2 Meteoroid orbits and trajectories 3.3 Atmospheric entry and heating 3.4 Ablation, fragmentation and fusion crust 3.5 Fireballs, bolides and meteor showers 3.6 Meteorite falls, strewn fields and impact events

Complete course index · Module 2 · Six written lessons Discover how gas and dust became the Sun, planets and meteorite parent bodies. These six lessons connect formation processes with the evidence preserved in meteorites. Read Module 1 first; no laboratory equipment is required. Lesson navigation 2.1 Origin and formation of the Solar System 2.2 The solar nebula and planetary accretion 2.3 Formation of asteroids, comets and planets 2.4 Early Solar System materials and processes 2.5 Planetary differentiation and parent bodies 2.6 Meteorites as records of Solar System history

Complete course index · Level 1 Foundation · Module 1 · Lessons 1.1–1.6 This introductory module explains what meteorite science studies, how the main terms differ, how evidence established the field, and why documented samples matter. It includes six written lessons, safe learning activities and review answers. See the complete course index for the latest publication status of later modules. Module learning goals Use scientific terminology correctly. Separate observations, interpretations and unsupported claims. Explain the historical and research value of documented meteorites. Prepare a small source-based study without damaging a specimen. Lesson navigation 1.1 Definition, history and scope of meteoritics 1.2 Meteoroids, meteors, meteorites and micrometeorites 1.3 Historical development of meteorite science 1.4 Importance of meteorites in planetary research 1.5 Famous meteorite falls and discoveries 1.6 Careers and research opportunities in meteoritics Work in sequence. Each lesson...

Learn meteorite science step by step, from origins and identification to laboratory methods, planetary research, conservation, responsible trade and famous meteorite sales. Publication status - 26 October 2026: All 31 modules are published, containing 186 written lessons. Each module links to its six lessons below. The course includes educational review questions, answer explanations, original diagrams, references and level assessments. How to study Begin with Level 1 and follow the modules in order. Keep a notebook of definitions, observations, sources and questions. Published photographs and reference data can support introductory study without buying specimens. Laboratory work requires appropriate facilities, training and supervision. The original 30-module sequence is preserved, with the requested additional Module 31 on famous meteorite sales. The earlier 12-module outline proposed 12 weeks and 120 guided hours; those planning figures are not a validated workload for this expande...