Inorganics

Id	Identification Type	Name	Description	Distinguishing Features	Tags
40	Mineral	Olivine	Transparent colorless to pale gray-green. Nonpleochroic. Vivid birefringence colors. Frequently occurs as subangular anhedral grains. Conchoidal fracture. Moderately high relief. Associated with calcic plagioclase and pyroxene.	Conchoidal-fracture Moderately-high-relief Anhedral	silicate ferromagnesian transparent colorless gray
103	Mineral	Opal
116	Lithofacies	Organic-rich carbonate mud with pyrite	Refers to a lithofacies comprising >50% chemically precipitated carbonate minerals, abundant secondary organic matter, and prominent accessory pyrite. Prominent co-occurrence of carbonate and opaque minerals. Likely to be pungent (H2S).		opaque black high-birefringence pungent stinky
163	Lithofacies	Organic-rich Diatom Ooze	Refers to a lithofacies comprising >50% diatom frustules, with organic matter (amorphous and/or fragmentary) making up the second-most abundant constituent. Prominence of diatom frustules; diatoms may be diverse, or essentially monospecific. Carbonate minerals subordinate, or absent. Clastic silt subordinate, or absent. Diagenetic minerals (e.g., vivianite; pyrite) occur commonly, but are subordinate.		circular transparent colorless rice-shape brown amorphous
53	Mineral	Orthoclase	Colorless to pale yellow, nonpleochroic, low birefringence, commonly elongate when euhedral, moderate to high relief, contact twinning is virtually diagnostic (only one twin plane in a single crystal). See also feldspar.	no-lamellar-twinning contact-twinning	feldspar silicate
28	Mineral	Orthopyroxene	Transparent colorless to green or brown. May be pleochroic from pale red to greenish (hypersthene). Low birefringence. Appear as stubby prisms and subhedral to anhedral crystals. Near-90 degree perfect cleavage. Moderately high relief.	Subhedral	Ferromagnesian pleochroic silicate transparent brown green good-cleavage moderately-high-relief

Inorganics

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