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  2. Lepidolite - Wikipedia

    en.wikipedia.org/wiki/Lepidolite

    Lepidolite is found naturally in a variety of colors, mainly pink, purple, and red, but also gray and, rarely, yellow and colorless. Because lepidolite is a lithium-bearing mica, it is often wrongly assumed that lithium is what causes the pink hues that are so characteristic of this mineral.

  3. Shungite - Wikipedia

    en.wikipedia.org/wiki/Shungite

    Shungite is either a diverse group of metamorphosed Precambrian rocks all of which contain pyrobitumen, or the pyrobitumen within those rocks. [1] It was first described from a deposit near Shunga village, in Karelia, Russia, from where it gets its name.

  4. Petalite - Wikipedia

    en.wikipedia.org/wiki/Petalite

    It occurs in lithium-bearing pegmatites with spodumene, lepidolite, and tourmaline. Petalite is an important ore of lithium, and is converted to spodumene and quartz by heating to ~500 °C and under 3 kbar of pressure in the presence of a dense hydrous alkali borosilicate fluid with a minor carbonate component. [ 8 ]

  5. Purpurite - Wikipedia

    en.wikipedia.org/wiki/Purpurite

    Purpurite is a manganese phosphate mineral with the formula MnPO 4, with varying amounts of iron depending upon its source.It occurs in color ranges from brownish black via purple and violet to dark red.

  6. Spodumene - Wikipedia

    en.wikipedia.org/wiki/Spodumene

    Spodumene is a pyroxene mineral consisting of lithium aluminium inosilicate, Li Al(Si O 3) 2, and is a commercially important source of lithium.It occurs as colorless to yellowish, purplish, or lilac kunzite (see below), yellowish-green or emerald-green hiddenite, prismatic crystals, often of great size.

  7. Porphyry (geology) - Wikipedia

    en.wikipedia.org/wiki/Porphyry_(geology)

    "Imperial Porphyry" from the Red Sea Mountains of Egypt A waterworn cobble of porphyry Rhyolite porphyry from Colorado; scale bar in lower left is 1 cm (0.39 in). Porphyry (/ ˈ p ɔːr f ə r i / POR-fə-ree) is any of various granites or igneous rocks with coarse-grained crystals such as feldspar or quartz dispersed in a fine-grained silicate-rich, generally aphanitic matrix or groundmass.

  8. Lithospermum erythrorhizon - Wikipedia

    en.wikipedia.org/wiki/Lithospermum_erythrorhizon

    Lithospermum erythrorhizon, commonly called purple gromwell, red stoneroot, red gromwell, red-root gromwell and redroot lithospermum, is a plant species in the family Boraginaceae. [1] It is called zǐcǎo ( 紫草 ) in Chinese, jichi ( 지치 ) in Korean, and murasaki ( ムラサキ ; 紫 ) in Japanese.

  9. Stichtite - Wikipedia

    en.wikipedia.org/wiki/Stichtite

    Stichtite is a mineral, a carbonate of chromium and magnesium; formula Mg 6 Cr 2 C O 3 (OH) 16 ·4H 2 O.Its colour ranges from pink through lilac to a rich purple colour. It is formed as an alteration product of chromite-containing serpentine.

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