The Nittany Lion looks out from a 
Central Pennsylvania doubly terminated quartz crystal.  Artwork © John Passaneau.
Nittany Mineralogical Society, Inc.
State College, Pennsylvania

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NMS display case at Penn State Earth & Mineral Sciences Museum and Art Gallery

Specialization in mineral collecting

The hobbyist mineral collector faces a dilemma: there are over 5500 minerals recognized by the International Mineralogical Association. Very few individuals will ever be able to collect them all. One solution to assembling a satisfying collection is specialization - limiting one’s scope of collecting. Examples of such limits include:
  • one or a few related mineral species
  • single crystals
  • color
  • chemistry
  • location - from a single site to a mining district, state, country, or region
  • behavior, such as ultraviolet fluorescence
This display is an example of a specialized collection of one species, fluorite. Also known in industry as fluorspar, fluorite is calcium fluoride, CaF2. has fluorite data and localities and a gallery of fluorite photographs.

Crystal Forms and Cleavage

Fluorite crystallizes in the cubic system, with the most common form being a cube, although octahedra and other forms do occur. It has perfect cleavage in four directions, making it relatively easy to cleave octahedra from a larger mass.

Fluorite in Pennsylvania

T-shirts in Galapagos Blue and Texas Orange
NMS has in stock T-shirts in Galapagos blue, Texas orange (both shown here) and royal blue.

A station at our Minerals Junior Education Day
A station at our Minerals Junior Education Day

Celestine crystal cluster 2016: CELESTINE: Pennsylvania State Mineral?

Collecting in a quarry
Collecting crystals in a quarry

Five different posters
We have 2013 (and other) posters for sale!

©2020 Nittany Mineralogical Society, Inc.      Main page last modified 2 April 2020      webmaster