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Mexican amber is mainly recovered from fossil bearing rocks in the Simojovel region of Chiapas, Mexico. It is one of the main minerals recovered in the state of Chiapas, much of which is from 15 to 23 million years old, with quality comparable to that found in the Dominican Republic. Chiapan amber has a number of unique qualities, including ...
The Aztecs viewed turquoise as an embodiment of fire and gave it properties such as heat and smokiness. They inlaid turquoise, together with gold, quartz, malachite, jet, jade, coral, and shells, into provocative (and presumably ceremonial [clarification needed]) mosaic objects such as masks (some with a human skull as their base), knives, and ...
Mexican Amate paper craft on Aztec sun stone. The sun stone image is displayed on the obverse the Mexican 20 Peso gold coin, which has a gold content of 15 grams (0.4823 troy ounces) and was minted from 1917 to 1921 and restruck with the date 1959 from the mid-1940s to the late 1970s. Different parts of the sun stone are represented on the ...
The color has resisted chemical solvents and acids such as nitric acid. Its resistance against chemical aggression (acids, alkalis , solvents , etc.) and biodegradation was tested, and it was shown that Maya blue is an extremely resistant pigment, but it can be destroyed using very intense acid treatment under reflux .
Clarity grading in coloured gemstones is based on the eye-clean standard, that is, a gem is considered flawless if no inclusions are visible with the unaided eye (assuming 20/20 vision). [29] The Gemological Institute of America classifies tanzanite as a Type I gemstone, meaning it is normally eye-clean.
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Lapis lazuli (UK: / ˌ l æ p ɪ s ˈ l æ z (j) ʊ l i, ˈ l æ ʒ ʊ-,-ˌ l i /; US: / ˈ l æ z (j) ə l i, ˈ l æ ʒ ə-,-ˌ l i /), or lapis for short, is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color.
Taco Chula’s sister sweet shop opened Oct. 14. Location: 10800 N. Military Tr., Suite 106, Palm Beach Gardens, 561-530-7755, on Instagram @ChuladosPGA Hours: Open Tuesday through Saturday from ...