Fergusite
A rock classification type
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A plutonic rock consisting of roughly 70% pseudoleucite (alkali feldspar, nepheline, kalsilite and minor analcime) and 30% pyroxene. Now defined modally as a variety of foidolite in QAPF field 15.
Unique Identifiers
Mindat ID:
50595
Long-form identifier:
mindat:1:1:50595:4
GUID
(UUID V4):
(UUID V4):
c5cbd6e4-2736-409e-9998-4d8ed8dc4659
Classification of Fergusite
Fergusite is in section 15 of the QAPF diagram.
Sub-divisions of Fergusite
- Fergusite
Mineralogy of Fergusite
Essential minerals - these are minerals that are required within the classification of this rock:
| Pseudoleucite | Pseudomorph after leucite. |
| Pyroxene | A petrological term for Pyroxene Group. |
Internet Links for Fergusite
mindat.org URL:
https://www.mindat.org/min-50595.html
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