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Unakite is a metamorphic rock that is altered granite composed of pink orthoclase feldspar, green epidote, and generally colorless quartz. Discovery
Mohs hardness of materials (data page) Vickers hardness test; Brinell scale This page was last edited on ...
The following is a list of rock types recognized by geologists.There is no agreed number of specific types of rock. Any unique combination of chemical composition, mineralogy, grain size, texture, or other distinguishing characteristics can describe a rock type.
When testing coatings, scratch hardness refers to the force necessary to cut through the film to the substrate. The most common test is Mohs scale, which is used in mineralogy. One tool to make this measurement is the sclerometer. Another tool used to make these tests is the pocket hardness tester. This tool consists of a scale arm with ...
Misinformation runs rampant online about human papillomavirus and the HPV vaccine. Here's what to know about the vaccine credited with historic drops in cancer, including cervical cancer.
Well developed crystals of epidote, Ca 2 Al 2 (Fe 3+;Al)(SiO 4)(Si 2 O 7)O(OH), crystallizing in the monoclinic system, are of frequent occurrence: they are commonly prismatic in habit, the direction of elongation being perpendicular to the single plane of symmetry.
Gatorade is the go-to electrolyte drink that's fueled athletes for decades. How often should you actually drink it?
Chronic inflammation may lead to serious health problems. Here, nutrition experts share foods that cause inflammation and what to eat instead.