astrophyllite |
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navigate by keyword : astrophyllite stellate aggregate mineral silicate aggregates crystal needles stone rock inosilicate light matrix felsic opaque rare starburst bladed tabular acicular sprays hydrous micaceous cleavage cluster isomorph heavy soft fragile potassium iron titanium object specimen greek astron star phyllon surface geology mineralogy brown bronze golden reddish russia isolated close |
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Astrophyllite, stellate aggregates. Rare brown to golden hydrous potassium iron titanium silicate mineral, with bladed or acicular crystals, and habit of starburst-like sprays and micaceous cleavage. |
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