Museum Collection This specimen is part of the museum collection catalog. Not for Sale.
Gabbro var. Indigo
Madagascar
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![Gabbro var. Indigo](/Files/Minerals/BlueGabbroMerlinite_93_lg.jpg)
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Classification |
Igneous Rock |
Tags |
No special tags. |
Origin Location |
Madagascar |
Description |
Nice sample of the mafic igneous rock Gabbro with phaneritic texture of dark gray pyroxene and lighter plagioclase feldspar grains displaying a distinctive light blue color, with some well defined, porphyritic crystals interspersed. This rock may be sold under the trade name "mystic merlinite". |
Luster |
Vitreous |
Luster (Groundmass) |
Granitic |
Optical Phenomena |
Not noted, see photo. |
Mineral Group / Note |
Igneous Rock |
Handling |
No special handling is required. |
Modifications |
No modifications. |
Size Group |
Miniature |
Weight |
Not weighed precisely yet, please inquire. |
Dimensions |
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Quantity |
1 Specimen |
Mineral List |
IMA minerals have not been identified, but may be present.
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Specimen Analysis |
Color Table
Colors found in this specimen image are shown below. Higher number indicates greater concentration of that color.
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Similarly Colored Minerals:
Minerals with similar color profiles are shown below.
How it Works
Cuprite![Cuprite](/Files/Minerals/Cuprite_467_sm.jpg) Cordierite![Cordierite](/Files/Minerals/Cordierite_462_sm.jpg) Goethite![Goethite](/Files/Minerals/TurgiteGoethite_243_sm.jpg) Fluorite / Quartz![Fluorite / Quartz](/Files/Minerals/FluoritewQuartz_145_sm.jpg) Quartz var. Amethyst![Quartz var. Amethyst](/Files/Minerals/QuartzvarAmethyst_711_sm.jpg) Hausmannite![Hausmannite](/Files/Minerals/Hausmannite_988_0_sm.jpg) |
Elements in this Specimen:
Elements that are part of the official chemical structure of the minerals occurring in this specimen are indicated below.
How it Works
Element List:
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Minerals with Similar Chemistry:
Minerals that are similar in terms of their chemical makeup are shown below.
How it Works
This Mineral Formula Similar Mineral Formula
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Mineral Group:
Search the catalog for minerals that share the same group as this specimen:
How it Works
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Tools |
Edit Specimen Search Wikipedia: Gabbro (Wiki) Search Mindat: Gabbro Search Web Mineral DB: Gabbro Search for Handbook of Mineralogy: Gabbro Search Wikipedia: Indigo (Wiki) Search Mindat: Indigo Search Web Mineral DB: Indigo Search for Handbook of Mineralogy: Indigo
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