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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.
This is a list of minerals which have Wikipedia articles.. Minerals are distinguished by various chemical and physical properties. Differences in chemical composition and crystal structure distinguish the various species.
Colored People's Time was used as the name of a 1960s public interest program produced by Detroit Public Television. It was also used in the title of the 1983 play, "Colored People's Time: A History Play," written by Leslie Lee , which consisted of 13 fictional vignettes of African American history , from the Civil War through Civil Rights and ...
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When using the chart, it is important to remember these tips: Isotropic and opaque (metallic) minerals cannot be identified this way. The stage of the microscope should be rotated until maximum colour is found, and therefore, the maximum birefringence. Each mineral, depending on the orientation, may not exhibit the maximum birefringence.
President-elect Donald Trump said this week he plans to attend former President Jimmy Carter's funeral following a history of mutual criticism. Carter, who died on Dec. 29 at the age of 100, will ...
The first generation of the iPod came out in 2001 and went through a series of bold changes before being discontinued in 2022. Since they’re no longer in production, original iterations have ...
MeasuringWorth is a free online service to calculate relative economic value over time using price indexes.It has data sets, charts, and comparators for prices in several currencies and economic time series for stock markets and the price of gold.