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In optical mineralogy, an interference colour chart, also known as the Michel-Levy chart, is a tool first developed by Auguste Michel-Lévy to identify minerals in thin section using a petrographic microscope.
Chlorastrolite, also known as Isle Royale Greenstone, is a green or bluish green stone. [1] Chlorastrolite has finely radiating or stellate (for examples, see crystal habits ) masses that have a "turtleback" pattern.
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The ColorChecker Classic chart is a rectangular card measuring about 11 by 8.25 inches (27.9 by 21.0 cm), or in its original incarnation about 13 by 9 inches (33 by 23 cm), an aspect ratio approximately the same as that of 35 mm film. [5]
The MLB world lost its all-time leader in stolen bases on Saturday with the death of Rickey Henderson, who was among baseball's brightest stars of the 1980s and '90s.. Henderson will always be ...
Price on eBay: $8,500 Porcelain dolls don’t have to be more than 2 feet tall to be worth a lot of money. This little lady stands only 15 1/2 inches tall, but her ornate details and impressive ...
The Food and Drug Administration (FDA) has revoked the use of Red Dye No. 3 (also known as erythrosine, Red Dye 3, FD&C Red No. 3 and Red No. 3) in food and ingested drugs as of January 15 ...
In 1965, the NBS published Centroid Color Charts made up of color samples demonstrating the central color in each category, as a physical representation of the system usable by the public, and also published The Universal Color Language, a more general system for color designation with various degrees of precision from completely generic (13 ...