Meteorite | Gemopedia

A meteorite is a solid piece of debris that originated in outer space, entered Earth's atmosphere and survived impact with the surface. These fragments are usually from comets or asteroids, or debris from the Moon or Mars. There are several known meteorite impact sites, including Campo Del Cielo Argentina, the Sikhote Alin Mountains In Primorye Russia and the Sahara Desert region of Morocco. Meteorites are separated into three types based on their metal content: iron, stony-iron and iron.
Colors
Black, gray, silver, brown, reddish orange (when oxidized)

Meteorite Classification

Common Name

Meteorite

Species

Chondrite, Achondrite, Iron Meteorite Or Stoney-Iron Meteorites

Variety

Colors

Black, gray, silver, brown, reddish orange (when oxidized)

Alternate Names

Gemstone Groups

Key Separations

Comments

Stoney meteorites are chondrites and achondrites. Chondrites have chondrules or round grains formed by distinct minerals and are the most common meteorites found. Achondrites have been reprocessed through to melting and recrystalliazation and lack chondrules; they have a similar appearance to basalts or plutonic rocks. Iron meteorites are made up mostly of an iron-nickel alloy called meteoric iron. Stoney-iron meteorites are made up of a iron-nickel matrix with silicate materials.

Meteorite Optical Properties

Transparency

Opaque

Refractive Index

Birefringence

Optic Character

Optic Sign

Polariscope Reaction

Fluorescence

SWUV:
LWUV:

CCF Reaction

Pleochroism

None

Dispersion

Comments

Meteorite Chemistry & Crystallography

Chemical Name

Chemical Formula

Synthesis

Crystal System

NA

Classification

Nature

Natural

Crystallinity

Aggregate

Comments

Meteorite Characteristic Physical Properties

Hardness

Streak

Specific Gravity

Toughness

Inclusions

Luster

Stability

Fracture

Cleavage

None

Comments

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