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2. Herkimer diamond - Wikipedia

   en.wikipedia.org/wiki/Herkimer_diamond

   Herkimer diamonds are double-terminated quartz crystals discovered within exposed outcrops of dolomite in and around Herkimer County, New York, and the Mohawk River Valley in the US. [1][2] They are not diamonds; the "diamond" in their name is due to both their clarity and well formed faces. Because the first discovery sites were in the village ...

3. Sasha LaPointe - Wikipedia

   en.wikipedia.org/wiki/Sasha_LaPointe

   Sasha LaPointe. Sasha taqʷšəblu (taqwšəblu) LaPointe is an indigenous author from the Pacific Northwest of the United States. She is most known for her 2022 memoir Red Paint: The Ancestral Autobiography of a Coast Salish Punk, [1] and book of poetry, Rose Quartz. [2]

4. Quartz arenite - Wikipedia

   en.wikipedia.org/wiki/Quartz_arenite

   Quartz arenite makes up the Prospect Mountain Quartzite on top of Doso Doyabi, Nevada. A quartz arenite or quartzarenite is a sandstone composed of greater than 90% detrital quartz. [1] Quartz arenites are the most mature sedimentary rocks possible, and are often referred to as ultra- or super-mature, and are usually cemented by silica. They ...

5. Prasiolite - Wikipedia

   en.wikipedia.org/wiki/Prasiolite

   Prasiolite. Prasiolite (also known as green quartz, green amethyst or vermarine) is a green variety of quartz. Since 1950, almost all natural prasiolite has come from a small Brazilian mine, [citation needed] but it has also been mined in the Lower Silesia region of Poland. Naturally occurring prasiolite has also been found in the Thunder Bay ...

6. Aventurine - Wikipedia

   en.wikipedia.org/wiki/Aventurine

   Aventurine. Aventurine is used for a number of applications, including landscape stone, building stone, aquaria, monuments, and jewelry. Aventurine is a form of quartzite, characterised by its translucency and the presence of platy mineral inclusions that give it a shimmering or glistening effect termed aventurescence.

7. Omega Electroquartz - Wikipedia

   en.wikipedia.org/wiki/Omega_Electroquartz

   The Omega Electroquartz was introduced in 1969 as the first Swiss quartz watch to be produced. It was the collaboration of 20 Swiss watch companies and the movement was utilised by Rolex, Patek Phillipe and Omega amongst others. The Beta 21 movement used in the Electroquartz was accurate to 5 seconds per month, far better than any automatic or ...