min-id.html

Minerals with Non-Metallic Lusters
(NOT Earthy)

PHYSICAL PROPERTIES					MINERAL NAME, FORMULA
	Light Colored	Harder than Glass	Cleavage	[MORE PROPERTIES]	POTASSIUM FELDSPAR, KAlSi₃O₈
					PLAGIOCLASE FELDSPAR, (Na,Ca)(Al,Si)₄O₈, Na>Ca
			NO Cleavage	[MORE PROPERTIES]	OLIVINE, (Mg,Fe)₂SiO₄
					QUARTZ, SiO₂
					GARNET, (Mg,Fe,Ca)₃Al₂Si₃O₁₂
		Softer than Glass	Cleavage	[MORE PROPERTIES]	CALCITE, CaCO₃
					DOLOMITE, CaMg(CO₃)₂
					MUSCOVITE, KAl₂(AlSi₃)O₁₀(OH)₂
	Dark Colored	Harder than Glass	NO Cleavage	[MORE PROPERTIES]	GARNET, (Fe,Mg,Ca)₃Al₂Si₃O₁₂
					QUARTZ, SiO₂
					OLIVINE, (Mg,Fe)₂SiO₄
			Cleavage	[MORE PROPERTIES]	HORNBLENDE, NaCa₂(Mg,Fe,Al)₅(Al,Si)₈O₂₂(OH)₂
					AUGITE, Ca(Mg,Fe)Si₂O₆
					PLAGIOCLASE FELDSPAR, (Ca,Na)(Al,Si)₄O₈, Ca>Na
					EPIDOTE, Ca₂FeAl₂Si₃O₁₂(OH)
					GARNET, (Fe,Mg,Ca)₃Al₂Si₃O₁₂
		Softer than Glass	Cleavage	[MORE PROPERTIES]	BIOTITE, K(Fe,Mg)₃AlSi₃O₁₀(OH)₂
					CHLORITE, (Mg,Fe)₆Si₄O₁₀(OH)₈
					CALCITE, CaCO₃
					DOLOMITE, CaMg(CO₃)₂

What is the shade of the color? [Light]---[Dark]