No Longer Available
This specimen was sold to a private collection. This page is for provenance reference only.
Tourmaline var. Blue Cap Dravite
Mwajanga, Tanzania
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| Classification |
Mineral |
| Tags |
No special tags. |
| Origin Location |
Mwajanga, Tanzania |
| Description |
A fine small sample of Dravite with a dark base fading to cloudy white with an intense, dark cobalt blue top. |
| Luster |
Vitreous |
| Luster (Groundmass) |
Not noted, see photo. |
| Optical Phenomena |
Not noted, see photo. |
| Mineral Group / Note |
Not noted, check reference links below. |
| Handling |
No special handling is required. |
| Modifications |
No modifications. |
| Size Group |
Thumbnail |
| Weight |
Not weighed precisely yet, please inquire. |
| Dimensions |
Not measured precisely yet, please inquire. |
| Quantity |
1 Specimen |
| Mineral List |
Dravite: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
sodium trimagnesium hexaluminum hexasilicon octadecoxygen boron oxygen oxygen trihydrogen hydroxide *
* Formula chemical names are auto-generated - may be incorrect on complex formulas.
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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
Stibnite Meteorite- Taenite/ Kamacite (Campo del Cielo) Menilite Phenakite Quartz var. Amethyst Quartz / Dumortierite |
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
Na Mg Al Si O B H Na Al Mg Si O B H
Na Mg Al Si O B H Na Cr Al Mg Si O B H
Na Mg Al Si O B H Na Fe Mg Al B O Si H
Na Mg Al Si O B H Na V Al Mg Si O B H
Na Mg Al Si O B H Na Mg Al Si O B H F
Na Mg Al Si O B H Na Fe Al Mg Si O B H
Na Mg Al Si O B H Na Al Mg Si O H
Na Mg Al Si O B H Na Ca Mg Si Al O H
Na Mg Al Si O B H Na Ca Mg Al Si O H
Na Mg Al Si O B H Na Ca Mg Al Si O H
Na Mg Al Si O B H Na Ca Al Mg Si O H
Na Mg Al Si O B H K Mg Al B O Si H
Na Mg Al Si O B H Na Mg Al Si O H
Na Mg Al Si O B H Na Mg Si Al O H
Na Mg Al Si O B H Na Mg Al Si O H
Na Mg Al Si O B H Ca Mg Al Si O B H
Na Mg Al Si O B H Na Al Mg Si O H
Na Mg Al Si O B H Na Mg Ca Al Si O H
Na Mg Al Si O B H Na Mg Al Si O H
Na Mg Al Si O B H Na Ca Mg Al Si O H
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Mineral Group:
Search the catalog for minerals that share the same group as this specimen:
How it Works
Structural Group(s):
Fleischers Group(s):
tourmaline
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| Tools |
Edit Specimen
Search Wikipedia: Tourmaline (Wiki)
Search Mindat: Tourmaline
Search Web Mineral DB: Tourmaline
Search for Handbook of Mineralogy: Tourmaline
Search Wikipedia: Blue Cap Dravite (Wiki)
Search Mindat: Blue Cap Dravite
Search Web Mineral DB: Blue Cap Dravite
Search for Handbook of Mineralogy: Blue Cap Dravite
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