Mineral Identification

This mineral is metallic, dense, is copper colored and tarnishes green.

• Pyrite

• Chalcopyrite

• Galena

• Copper

This mineral has 2 cleavages at 90, contains exsolution, and is typically a orange to green color with a hardness of 6.

• Plagicolase

• Orthoclase

• Quartz

• Talc

This mineral has a hardness of 6.5 and is brassy gold with cubic crystals. It does not tarnish.

• Pyrite

• Chalcopyrite

• Olivine

• Chalcedony

This mineral is magnetic, metallic, and has a grey to dark grey streak.

• Hematite

• Magnetite

• Chalcopyrite

• Galena

This mineral has 3 cleavages not at 90 (rhombohedral), hardness of 3.5 and fizzes with acid

• Calcite

• Gypsum

• Fluorite

• Quartz

This mineral is metallic, very brassy gold and can tarnish purple. It is soft 3.5 and not found in crystal form very often.

• Magnetite

• Galena

• Chalcopyrite

• Pyrite

This mineral forms very small crystals and is a glassy rich green to pale green color and will scratch glass.

• Quartz

• Olivine

• Chalcedony

• Orthoclase

This mineral is very soft (2), comes in several colors and forms such as orange, colorless or white, and does not fizz with acid or have a soapy feel

• Talc

• Gypsum

• Calcite

• Fluorite

THis mineral is very hard (7) can be found as hexagonal crystals but will fracture if broken. It comes in many colors (smoke, rose, orange, purple, white, colorless).

• Fluorite

• Calcite

• Quartz

• Garnet

This is a form of microcrystalline quartz that fractures and is very dull and can be grey,white, red or brown.

• Quartz

• Chalcedony

• Pyroxene

• Garnet