Colorless+rock-crystal
31peb|ble — «PEHB uhl», noun, verb, bled, bling. –n. 1. a small stone, usually worn smooth and rounded, especially by being rolled about by water or by glacial action: »to wake a person by throwing pebbles at his window. So wears the paving pebble in the… …
32Diamond — This article is about the mineral. For the gemstone, see Diamond (gemstone). For other uses, including the shape ◊, see Diamond (disambiguation) …
33Lawsonite — is a hydrous calcium aluminium sorosilicate mineral with formula CaAl2Si2O7(OH)2·H2O. Lawsonite crystallizes in the orthorhombic system in prismatic, often tabular crystals. Crystal twinning is common. It forms transparent to translucent… …
34Actinide — The atomic bomb dropped on Nagasaki had a plutonium charge.[1] The actinide or actinoid (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium thro …
35Properties of water — H2O and HOH redirect here. For other uses, see H2O (disambiguation) and HOH (disambiguation). This article is about the physical and chemical properties of pure water. For general discussion and its distribution and importance in life, see Water …
36Zircon — Not to be confused with zirconia or cubic zirconia. This article is about the mineral. For other uses, see Zircon (disambiguation). Zircon Zircon crystal from Tocantins, Brazil (2×2 cm) …
37Selenite — This article is about the mineral: for other meanings, see Selenite (disambiguation). Selenite, satin spar, desert rose, and gypsum flower are four varieties of gypsum; all four varieties show obvious crystalline structure. The four crystalline… …
38Sapphire — For other uses, see Sapphire (disambiguation). Sapphire The 423 carat (85 g) blue Logan sapphire General Category Oxide mineral …
39Synthetic diamond — Synthetic diamonds of various colors grown by the high pressure high temperature technique Synthetic diamond is diamond produced in a technological process; as opposed to natural diamond, which is created in geological processes. Synthetic… …
40Opal — For other uses, see Opal (disambiguation). Opal An opal bracelet. The stone size is 18 by 15 mm (0.7 by 0.6 in) General Category …
