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Peña Blanca Mine (Peñas Blancas Mine), Mun. de San Pablo de Borbur, Vasquez-Yacopí mining district, Boyacá Department, Colombia

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 5° North , 74° West (est.)
Margin of Error:~5km
Locality type:Mine
Köppen climate type:Af : Tropical rainforest climate


Most northern of all emerald mines in the Western Emerald Bearing Belt (Boyacá, Colombia), also known as the Vasquez - Yacopí Disctrict. The mineralogy of Peñas Blancas is very different from that found in the other mines in Colombia, particulary because of the absence of pyrite and other sulphides and the presence of fluorite crystals of up to 40 cm between aristes.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


7 valid minerals.

Detailed Mineral List:

Baryte
Formula: BaSO4
Reference: Simone Citon specimen
Beryl
Formula: Be3Al2(Si6O18)
Habit: Euhedral prismatic
Colour: green
Reference: Saenz, L. D. (2005): PETROGRAFÍA Y GEOTERMOMETRÍA DE LOS YACIMIENTOS DE ESMERALDA DE PEÑA BLANCA (SAN PABLO DE BORBUR, BOYACÁ, COLOMBIA)
Beryl var: Emerald
Formula: Be3Al2(Si6O18)
Reference: Natural History Museum Vienna collection; Emeralds of the World English extraLapis Vol. 2 2002, 36-45
Calcite
Formula: CaCO3
Habit: euhedral romboedric, euhedral escalenoedric
Colour: white, colourless, creamy, grey
Reference: Saenz, L. D. (2005): PETROGRAFÍA Y GEOTERMOMETRÍA DE LOS YACIMIENTOS DE ESMERALDA DE PEÑA BLANCA (SAN PABLO DE BORBUR, BOYACÁ, COLOMBIA)
Fluorite
Formula: CaF2
Habit: euhedral octagonal
Colour: green, colourless, purple
Reference: Saenz, L. D. (2005): PETROGRAFÍA Y GEOTERMOMETRÍA DE LOS YACIMIENTOS DE ESMERALDA DE PEÑA BLANCA (SAN PABLO DE BORBUR, BOYACÁ, COLOMBIA)
Pyrite
Formula: FeS2
Reference: Simone Citon specimen
Quartz
Formula: SiO2
Habit: euhedral prismatic, druse, mosaic, parallel bladed
Colour: colourless
Reference: Saenz, L. D. (2005): PETROGRAFÍA Y GEOTERMOMETRÍA DE LOS YACIMIENTOS DE ESMERALDA DE PEÑA BLANCA (SAN PABLO DE BORBUR, BOYACÁ, COLOMBIA)
Siderite ?
Formula: FeCO3
Habit: Euhedral prismatic
Colour: brown red
Reference: Saenz, L. D. (2005): PETROGRAFÍA Y GEOTERMOMETRÍA DE LOS YACIMIENTOS DE ESMERALDA DE PEÑA BLANCA (SAN PABLO DE BORBUR, BOYACÁ, COLOMBIA)

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
Siderite ?5.AB.05FeCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Baryte'7.AD.35BaSO4
Group 9 - Silicates
'Beryl'9.CJ.05Be3Al2(Si6O18)
var: Emerald9.CJ.05Be3Al2(Si6O18)

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite ?14.1.1.3FeCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
Beryl
var: Emerald
-Be3Al2(Si6O18)

List of minerals for each chemical element

BeBeryllium
Be BerylBe3Al2(Si6O18)
Be Beryl (var: Emerald)Be3Al2(Si6O18)
CCarbon
C CalciteCaCO3
C SideriteFeCO3
OOxygen
O BaryteBaSO4
O BerylBe3Al2(Si6O18)
O CalciteCaCO3
O Beryl (var: Emerald)Be3Al2(Si6O18)
O QuartzSiO2
O SideriteFeCO3
FFluorine
F FluoriteCaF2
AlAluminium
Al BerylBe3Al2(Si6O18)
Al Beryl (var: Emerald)Be3Al2(Si6O18)
SiSilicon
Si BerylBe3Al2(Si6O18)
Si Beryl (var: Emerald)Be3Al2(Si6O18)
Si QuartzSiO2
SSulfur
S BaryteBaSO4
S PyriteFeS2
CaCalcium
Ca CalciteCaCO3
Ca FluoriteCaF2
FeIron
Fe PyriteFeS2
Fe SideriteFeCO3
BaBarium
Ba BaryteBaSO4

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Saenz, L. D. (2005): Petrografía y geotermometría de los yacimientos de esmeralda de Peña Blanca (San Pablo de Borbur, Boyacá, Colombia).


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