Hard glassy mineral
Crossword Clue

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AnswerCrossword Clue
GARNETHard glassy mineral
phenakitea hard glassy mineral that consists of a silicate of beryllium and occurs especially in rhombohedral crystals
phenacitea hard glassy mineral that consists of a silicate of beryllium and occurs especially in rhombohedral crystals
spinelsA hard glassy mineral occurring as octahedral crystals of variable color and consisting chiefly of magnesium and aluminum oxides
SILICAGlassy mineral
MICAGlassy mineral
IDOCRASEVesuvianite, a glassy mineral.
SILICAGlassy mineral found in sand
colemanitesA white crystalline mineral, typically occurring as glassy prisms, consisting of hydrated calcium borate
colemaniteA white crystalline mineral, typically occurring as glassy prisms, consisting of hydrated calcium borate
tourmaline(French) a brittle boron aluminosilicate mineral with a glassy lustre, occurring as prismatic crystals of the trigonal system
tourmalinesTOURMALINE, (French) a brittle boron aluminosilicate mineral with a glassy lustre, occurring as prismatic crystals of the trigonal system
apophylliteA mineral occurring typically as white glassy prisms, usually as a secondary mineral in volcanic rocks. It is a hydrated silicate and fluoride of calcium and potassium