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Calvin University's official student newspaper since 1907

Calvin University Chimes

Since 1907
Calvin University's official student newspaper since 1907

Calvin University Chimes

Calvin University's official student newspaper since 1907

Calvin University Chimes

All content by James Karsten

Mineral Spotlight: Alabaster

James Karsten
May 7, 2015

For the last Spotlight of the year, I thought I would venture into the folklore of minerals, focusing on the ancient uses and beliefs around the mineral alabaster. Alabaster is not the technical name for...

Mineral Spotlight: Diamonds, Sapphires and Proustite

James Karsten
April 23, 2015

Okay people, spring is here so I thought, “What better to do with this column than to talk about gemstones?” This is a hot topic this time of year, and some may find themselves scrambling and realizing...

Photo by Rob Lavinsky (CC-BY-SA-3.0)

Mineral Spotlight: Feldspar

James Karsten
March 26, 2015

Feldspar is the most common mineral in the earth’s crust. It makes up part of most igneous rocks, as well as part of many metamorphic rocks. In fact, much of the moon (the brighter and more white...

Photo by Jake Slagle (CC BY-NC 2.0).

Mineral Spotlight: Garnet

James Karsten
February 26, 2015

This week the mineral spotlight is garnet, a very versatile and beautiful mineral. Garnet is a silicate mineral with general formula X3Y2(SiO4)3. The variations of elements in the X and Y spots in the...

Mineral Spotlight: Vanadinite

James Karsten
February 12, 2015

Vanadinite is not a mineral that is talked about very much, but it should be. It is a rare mineral, and, with the chemical formula Pb5(VO4)3Cl, it is one of the largest sources of the metal vanadium as...

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