Glucine
A valid IMA mineral species
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About Glucine
Formula:
CaBe4(PO4)2(OH)4 · 0.5H2O
Colour:
White, light yellow
Lustre:
Silky, Pearly
Hardness:
5
Specific Gravity:
2.23 - 2.40
Name:
Named by N.A. Grigoriev in 1963 after glucinium, Latin for beryllium, for its presence in the mineral.
Spherical clusters of white plates
Unique Identifiers
Mindat ID:
1712
Long-form identifier:
mindat:1:1:1712:7
GUID
(UUID V4):
(UUID V4):
c0b99a5c-882c-4c30-b0ce-c13b3c1dc71e
IMA Classification of Glucine
Approved
First published:
1963
Classification of Glucine
8.DA.45
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
A : With small (and occasionally larger) cations
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
A : With small (and occasionally larger) cations
42.4.10.1
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
4 : (AB)5(XO4)2Zq·xH2O
42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
4 : (AB)5(XO4)2Zq·xH2O
19.3.5
19 : Phosphates
3 : Phosphates of Be and Mg
19 : Phosphates
3 : Phosphates of Be and Mg
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Glu | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Glucine
Silky, Pearly
Transparency:
Transparent, Translucent
Colour:
White, light yellow
Streak:
White
Hardness:
5 on Mohs scale
Fracture:
Fibrous, Micaceous
Density:
2.23 - 2.40 g/cm3 (Measured)
Optical Data of Glucine
Type:
Biaxial
RI values:
nα = 1.547 nβ = 1.555 nγ = 1.571
Birefringence:
0.004
Max Birefringence:
δ = 0.024
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
none
Pleochroism:
Non-pleochroic
Chemistry of Glucine
Mindat Formula:
CaBe4(PO4)2(OH)4 · 0.5H2O
Crystallography of Glucine
Morphology:
Found as small fibers (10-50 microns, occasionally larger) Has been found as 10-50 micron platy crystals with irregular shape suggesting twinning. Also found as crude to well-formed spheres.
Twinning:
Possibly sector-twinned
Comment:
Crystal Data: n.d. Point Group: n.d. ; Space Group: n.d. Z =n.d.
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 10.81 Å | (100) |
| 5.40 Å | (10) |
| 4.44 Å | (20) |
| 4.04 Å | (40) |
| 3.70 Å | (20) |
| 3.44 Å | (40) |
| 3.14 Å | (50) |
| 2.87 Å | (10) |
| 2.67 Å | (60) |
| 2.41 Å | (100) |
| 2.27 Å | (20b) |
| 2.14 Å | (50) |
| 2.04 Å | (50) |
| 1.948 Å | (80) |
| 1.782 Å | (40) |
| 1.696 Å | (20) |
| 1.651 Å | (30) |
| 1.562 Å | (10) |
| 1.529 Å | (80) |
| 1.494 Å | (25b) |
| 1.390 Å | (100) |
| 1.359 Å | (10) |
| 1.330 Å | (20) |
| 1.229 Å | (70) |
| 1.199 Å | (70b) |
| 1.147 Å | (50b) |
| 1.122 Å | (50b) |
| 1.074 Å | (20b) |
| 1.052 Å | (20b) |
| 1.032 Å | (10) |
| 1.024 Å | (10) |
Comments:
ICDD 15-781
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 22 : Hydration and low-𝑇 subsurface aqueous alteration (see also #23) | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites | |
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47c : [Carbonates, phosphates, borates, nitrates] |
Type Occurrence of Glucine
General Appearance of Type Material:
10-50 micron sized needles and platy crystals
Place of Conservation of Type Material:
Il'menskii Preserve Museum, Miass, 11344vr; Mining Institute, St. Petersburg,118/1.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 65901, 65902.
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 65901, 65902.
Geological Setting of Type Material:
mica-fluorite greisen in illite rocks
Associated Minerals at Type Locality:
Reference:
rigoriev, N.A. (1963) Glucine - a new beryllium mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 92: 691-696.
Other Language Names for Glucine
German:Glucin
Common Associates
Associated Minerals Based on Photo Data:
| 1 photo of Glucine associated with Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
Related Minerals - Strunz-mindat Grouping
| 8.DA.05 | Bearsite | Be2(AsO4)(OH) · 4H2O |
| 8.DA.05 | Moraesite | Be2(PO4)(OH) · 4H2O |
| 8.DA.10 | Roscherite | Ca2Mn2+5Be4(PO4)6(OH)4 · 6H2O |
| 8.DA.10 | Zanazziite | Ca2Mg5Be4(PO4)6(OH)4 · 6H2O |
| 8.DA.10 | Greifensteinite | Ca2Fe2+5Be4(PO4)6(OH)4 · 6H2O |
| 8.DA.10 | Atencioite | Ca2Fe2+3Mg2Be4(PO4)6(OH)4 · 6H2O |
| 8.DA.10 | Ruifrancoite | Ca2(◻,Mn)2(Fe3+,Mn,Mg)4Be4(PO4)6(OH)4(OH,H2O)2 · 4H2O |
| 8.DA.10 | Guimarãesite | Ca2Be4Zn5(PO4)6(OH)4 · 6H2O |
| 8.DA.10 | Footemineite | Ca2Mn2+Mn2+2Mn2+2Be4(PO4)6(OH)4 · 6H2O |
| 8.DA.10 | Okruschite | Ca2Mn2+5Be4(AsO4)6(OH)4 · 6H2O |
| 8.DA.15 | Uralolite | Ca2Be4(PO4)3(OH)3 · 5H2O |
| 8.DA.20 | Weinebeneite | CaBe3(PO4)2(OH)2 · 4H2O |
| 8.DA.25 | Tiptopite | K2(Na,Ca)2Li3Be6(PO4)6(OH)2 · H2O |
| 8.DA.40 | Spencerite | Zn4(PO4)2(OH)2 · 3H2O |
Other Information
Notes:
The mineral is slowly dissolved by 5% HCl.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Glucine
mindat.org URL:
https://www.mindat.org/min-1712.html
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References for Glucine
Localities for Glucine
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Russia (TL) | |
| N.A. Grigoriev et al. (6) +1 other reference |
USA | |
| Mineralogical Record 22:382 +1 other reference |
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Boevskoe Be deposit, Kaslinsky District, Chelyabinsk Oblast, Russia