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Aplitic granite
A rock subtype
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About Aplitic granite
An aplite or fine-grained granite consisting primarily of feldspar and quartz, with only minor to trace mica and mafic minerals. Typically 0.5-2mm grain size.
Similar to microgranite, which is slightly coarser, typically 2-5mm. Aplite usually has a visibly saccharoidal texture, not aphanitic . Aplite is also generally restricted to dykes and bands in pegmatites, while microgranite can be in larger bodies.
Similar to microgranite, which is slightly coarser, typically 2-5mm. Aplite usually has a visibly saccharoidal texture, not aphanitic . Aplite is also generally restricted to dykes and bands in pegmatites, while microgranite can be in larger bodies.
Unique Identifiers
Mindat ID:
48143
Long-form identifier:
mindat:1:1:48143:2
Classification of Aplitic granite
Granite is in section 3 of the QAPF diagram.
Sub-divisions of Aplitic granite
- Aplitic granite
Mineralogy of Aplitic granite
Essential minerals - these are minerals that are required within the classification of this rock:
| Feldspar > Alkali Feldspar | A subgroup of the Feldspar Group, poor in calcium, and mostly rich in potassium. |
| Feldspar > Plagioclase | (Na,Ca)[(Si,Al)AlSi2]O8 |
| Silica > Quartz | SiO2 |
Non-essential minerals - these minerals are common, sometimes major components, but are not always present:
| Amphibole | A petrological term for Amphibole Supergroup. |
| Mica | A petrological term for Mica Group. |
Synonyms of Aplitic granite
Other Language Names for Aplitic granite
Internet Links for Aplitic granite
mindat.org URL:
https://www.mindat.org/min-48143.html
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Please feel free to link to this page.
Search Engines:
Trichy, Tiruchirapalli District, Tamil Nadu, India