schorl mineral also black tourmaline white background |
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| navigate by keyword : background black boro class closeup collection columnar earth element geological geology hexagonal isolated macro material mineral mineralogy natural object original petrography prismson raw rock sample schorl shape silicate specimen stone structure surface tourmaline white |
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| Schorl also black tourmaline columnar prismson mineral with Hexagonal crystal system from boro-silicate class white background |
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