Nonfoliated Coarse grain

You have now identified a Fine grained, nonfoliated metamorphic rock. To complete the identification process you must further classify the crystalline structure.

Non Foliated Textures
Example
Name
Parent Rock
Sandy or crystalline texture
  • Does not react with HCL
  • Fused sand grains
Quartzite

Sandstone

Crystalline texture
  • Reacts with HCL
Marble

Limestone

 

 

Conglomerate
  • Strecthed pebbles
  • Breaks across grains

 
Metaconglomerate
Conglomerate




©2006 Sean Tvelia