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the world > the earth > minerals > types of mineral > silicates > miscellaneous silicates > [noun] > of glucinum and manganese (3)
helvin1818

A honey-yellow or greenish silicate of glucinum and manganese, occurring in regular tetrahedral crystals.

helvite1868

= helvin, n.

trimerite1896

a rare silicate of glucinum, manganese, and calcium, occurring in pinkish pseudo-hexagonal crystals, shown by their optical properties to be…

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更新时间:2025/1/31 1:21:43