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2. Interference colour chart - Wikipedia

   en.wikipedia.org/wiki/Interference_colour_chart

   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.

3. BareMinerals Just Launched 3 Buzzy New Serums Made to ... - AOL

   www.aol.com/bareminerals-just-launched-three...

   PureWow Editors select every item that appears on this page,, and the company may earn compensation through affiliate links within the story You can learn more about that process here. Yahoo Inc ...

4. Color chart - Wikipedia

   en.wikipedia.org/wiki/Color_chart

   Color chips or color samples from a plastic pellet manufacturer that enables customers to evaluate the color range as molded objects to see final effects. A color chart or color reference card is a flat, physical object that has many different color samples present. They can be available as a single-page chart, or in the form of swatchbooks or ...

5. Streak (mineralogy) - Wikipedia

   en.wikipedia.org/wiki/Streak_(mineralogy)

   Streak plates with pyrite (left) and rhodochrosite (right). The streak of a mineral is the color of the powder produced when it is dragged across an unweathered surface. Unlike the apparent color of a mineral, which for most minerals can vary considerably, the trail of finely ground powder generally has a more consistent characteristic color, and is thus an important diagnostic tool in mineral ...

6. List of inorganic pigments - Wikipedia

   en.wikipedia.org/wiki/List_of_inorganic_pigments

   Aluminum pigments. Ultramarine (PB29): a synthetic or naturally occurring sulfur containing silicate mineral - Na 8–10 Al 6 Si 6 O 24 S 2–4 (generalized formula); Persian blue: made by grinding up the mineral Lapis lazuli.

7. List of minerals recognized by the International ...

   en.wikipedia.org/wiki/List_of_minerals...

   The name of a new mineral is kept confidential by the IMA until it is approved or until its full description is published, its authors' option (approved decision: 'IMA2009-D'). [5] The IMA uses a code for its own procedures for the supposed new mineral (and so it is a synonym).