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2. Wikipedia:WikiProject Rocks and minerals - Wikipedia

   en.wikipedia.org/wiki/Wikipedia:WikiProject...

   Most varieties weak; definite in smoky quartz Streak: White Specific gravity: 2.65 constant; variable in impure varieties Melting point: Solubility: Major varieties (or Related minerals ) One way to do it: Chalcedony, Agate, Onyx, Jasper, Aventurine, Tiger's eye, Rock Crystal, Amethyst, Citrine, Rose quartz, Milk quartz (or snow quartz), Carnelian

3. List of minerals - Wikipedia

   en.wikipedia.org/wiki/List_of_minerals

   Sapphire (gem corundum of any color except red, especially blue varieties) Sard (a variety of chalcedony/quartz) Satinspar (a variety of gypsum) Selenite (a variety of gypsum) Simetite (a variety of amber) Smoky quartz (a brown or black variety of quartz) Soda niter (synonym of nitratine) Spectrolite (a variety of labradorite) Spessartite ...

4. Quartz - Wikipedia

   en.wikipedia.org/wiki/Quartz

   Some rose quartz contains microscopic rutile needles that produce asterism in transmitted light. Recent X-ray diffraction studies suggest that the color is due to thin microscopic fibers of possibly dumortierite within the quartz. [52] Additionally, there is a rare type of pink quartz (also frequently called crystalline rose quartz) with color ...

5. 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 ...

6. Carnelian (color) - Wikipedia

   en.wikipedia.org/wiki/Carnelian_(color)

   Carnelian is a color named after the carnelian variety of the mineral chalcedony. This semi-precious gemstone is noted for its rich shade of reddish - brown . The first recorded use of Carnelian as a color name in English was in 1899. [ 2 ]

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8. The Hidden Meaning Behind 11 Popular Rose Colors

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   Learn about 11 most popular rose color meanings and what the colors symbolize before you send a bouquet, from bright red to maroon, pink, white, and yellow.

9. Carnelian - Wikipedia

   en.wikipedia.org/wiki/Carnelian

   Similar to carnelian is sard, which is generally harder and darker; the difference is not rigidly defined, and the two names are often used interchangeably. Both carnelian and sard are varieties of the silica mineral chalcedony colored by impurities of iron oxide. The color can vary greatly, ranging from pale orange to an intense almost-black ...