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This specimen began as small thick Prehnite stalactites of light green coloring, with a sparkly luster, that later developed rounded terminations. The stalactites sit atop a layer of Datolite microcrystals, and this specimen was extracted from Prospect Park Quarry, in Passaic County, New Jersey.

Mineral collectors certainly enjoy a variety of tastes in what they collect. Some stick to one species like quartz or calcite. In one case, I know a fellow who enjoys collecting just malachite in all its forms. Other mineral collectors take a broader approach to their specialized collection. They may stick to just thumbnails or miniatures, or one locality like Tsumeb or Bisbee, or one country.

Others only collect the minerals from their state. My son, Evan, is well-known for his extensive Arizona collection. My collecting after World War II focused on luminescent minerals, culminating in my Master’s thesis, “Luminescent Minerals of Connecticut.” That’s the beauty of mineral collecting. It can be as broad or as narrow as a collector prefers.

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Rock & Gem January 2019, Examining Biblical Minerals Connections, Collecting Stalactites, And More.....