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2. Azurite - Wikipedia

   en.wikipedia.org/wiki/Azurite

   Azurite crystallizes in the monoclinic system. [10] Large crystals are dark blue, often prismatic. [3] [4] [8] Azurite specimens can be massive to nodular or can occur as drusy crystals lining a cavity. [11] Azurite has a Mohs hardness of 3.5 to 4. The specific gravity of azurite is 3.7 to 3.9. Characteristic of a carbonate, specimens ...

3. Lazulite - Wikipedia

   en.wikipedia.org/wiki/Lazulite

   Its crystal habits include steep bipyramidal or wedge-shaped crystals. [7] ... and berlinite in metamorphic terrains; and with albite, quartz ... lapis lazuli or azurite.

4. Chrysocolla - Wikipedia

   en.wikipedia.org/wiki/Chrysocolla

   Associated minerals are quartz, limonite, azurite, malachite, cuprite, and other secondary copper minerals. It is typically found as botryoidal or rounded masses and crusts, or vein fillings. A 2006 study has produced evidence that chrysocolla may be a microscopic mixture of the copper hydroxide mineral spertiniite , amorphous silica and water.

5. Gemstones of Pakistan - Wikipedia

   en.wikipedia.org/wiki/Gemstones_of_Pakistan

   Various types of quartz found are diamond, window, quartz on prehnite, and faden. Image shows translucent light sea-foam green prehnite with quartz crystals. [3] Taftan: Quartz and brookite: The image shows a large specimen of quartz crystals on brookite from Taftan. Chagai: Malachite, azurite, garnet, zircon, obsidian, lapis lazuli, and brookite

6. Azure spar - Wikipedia

   en.wikipedia.org/wiki/Azure_spar

   Azure spar, sometimes azur-spar (German: Lazur spath, Blau spath) is a trivial and commercial, partly obsolete name for several of the most famous bright blue or blue-colored minerals, which also have similar names, most notably for lazurite and azurite, [1]: 14 and also for the less commonly used lazulite.

7. List of gemstones by species - Wikipedia

   en.wikipedia.org/wiki/List_of_gemstones_by_species

   Actinolite. Nephrite (var.); Adamite; Aegirine; Afghanite; Agrellite; Algodonite; Alunite; Amblygonite; Analcime; Anatase; Andalusite. Chiastolite; Andesine ...