Textures - Crystallization basis

Holocrystalline

Rocks which are made up of entirely crystals without glassy materials are called as holocrystalline.

Rocks which are made up of entirely glassy materials without any crystalline features are called as holohyaline.

Rpcks which are made up of mostly crystals and some sobordinate glass are called as hemicrystalline.

Rocks which are made up of glassy matters and some subordinate crystal

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