Carbonate Pika Card


Available in Opaque Limestone Blue


  • Front: Folk 1962 Classification System
  • Back: Dunham 1962 Classification System

53 in stock

SKU: CA-BO-###


  • 2.45 Ounces (70 Grams)


  • Inches (4.63 x 7.38 x 0.125)
  • Centimeters (11.76 x 18.75 x 0.3175)


  • Pika Card has a strategically placed hole for carabiner, lanyard, clip or shoelace placing the Pika Card always by your side for easy access.  Carry it on your pack, in your pocket, clipped to your belt or around your neck, the Pika Card will be ready.
  • Each Pika Card is color coded for ease of identification.  An instant geologic reference always by your side regardless of where you are.
  • No internet accesses? No problem for the Pika Card, it’s always by your side with handy facts and classification systems at your finger tips.
  • In the field, we’re only as good as the information we gather.  The Pika Card will help you become more accurate and precise gathering better data for your geologic interpretations.


Cast Acrylic
  • Excellent optical clarity and transparency
  • Highly resistant to variations in temperature
  • Up to 17 times the impact resistance of ordinary glass
  • Half the weight of glass and ideal for precision machining
  • Highly resistant to many different chemicals
  • Has certain properties making it an ideal material for use in a wide range of applications, including medical, life sciences and food/beverage testing.
General Properties:
  • Relative Density 1.19 g/cm3
  • Rockwell Hardness M 102
  • Water Absorption 0.2%
  • Flammability Class 3 (BS 476 pt 7), UL94 HB
  • Tensile Strength 75 MPa
  • Flexural Strength 115 MPa
Thermal Properties:
  • Minimum Service Temperature -40°C
  • Maximum Service Temperature 80°C
  • Softening Point >110°C
  • Linear Expansion 7.7×10-5
Optical Properties:
  • Light Transmission >92%
  • Refractive Index 1.49