The area immediately to the N and W of Borra exposes a sequence of carbonate-bearing granulites, khondalites and leptynites, of which the carbonate-bearing rocks include calc-silicate granulites, massive dolomites, diopsidites and calcite pegmatites. The area underwent a complex history pf polyphase deformation and metamorphism.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List

ⓘ Anorthite

9 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Anorthite

Formula: Ca(Al₂Si₂O₈)

References:

Bhowmik, S. K. (2000). Ultrapotassic rocks along late ductile shear zones from the Eastern Ghats belt, India. Gondwana Research, 3(1), 55-63.

ⓘ 'Apatite'

Formula: Ca₅(PO₄)₃(Cl/F/OH)

References:

Gondwana Research 3(1): 65-77.

Bhowmik, S. K. (2000). Ultrapotassic rocks along late ductile shear zones from the Eastern Ghats belt, India. Gondwana Research, 3(1), 55-63.

ⓘ Calcite

Formula: CaCO₃

References:

Bhowmik, S. K. (2000). Ultrapotassic rocks along late ductile shear zones from the Eastern Ghats belt, India. Gondwana Research, 3(1), 55-63.

ⓘ Diopside

Formula: CaMgSi₂O₆

References:

Gondwana Research 3(1): 65-77.

Bhowmik, S. K. (2000). Ultrapotassic rocks along late ductile shear zones from the Eastern Ghats belt, India. Gondwana Research, 3(1), 55-63.

ⓘ Dolomite

Formula: CaMg(CO₃)₂

References:

Bhowmik, S. K. (2000). Ultrapotassic rocks along late ductile shear zones from the Eastern Ghats belt, India. Gondwana Research, 3(1), 55-63.

ⓘ Graphite

Formula: C

References:

Gondwana Research 3(1): 65-77.

Bhowmik, S. K. (2000). Ultrapotassic rocks along late ductile shear zones from the Eastern Ghats belt, India. Gondwana Research, 3(1), 55-63.

ⓘ Kalsilite

Formula: KAlSiO₄

References:

Gondwana Research 3(1): 65-77.

Bhowmik, S. K. (2000). Ultrapotassic rocks along late ductile shear zones from the Eastern Ghats belt, India. Gondwana Research, 3(1), 55-63.

ⓘ 'K Feldspar'

References:

Gondwana Research 3(1): 65-77.

Bhowmik, S. K. (2000). Ultrapotassic rocks along late ductile shear zones from the Eastern Ghats belt, India. Gondwana Research, 3(1), 55-63.

ⓘ 'Leptynite'

References:

Bhowmik, S. K. (2000). Ultrapotassic rocks along late ductile shear zones from the Eastern Ghats belt, India. Gondwana Research, 3(1), 55-63.

ⓘ Leucite

Formula: K(AlSi₂O₆)

References:

Gondwana Research 3(1): 65-77.

Bhowmik, S. K. (2000). Ultrapotassic rocks along late ductile shear zones from the Eastern Ghats belt, India. Gondwana Research, 3(1), 55-63.

ⓘ Meionite

Formula: Ca₄Al₆Si₆O₂₄CO₃

References:

Gondwana Research 3(1): 65-77.

Bhowmik, S. K. (2000). Ultrapotassic rocks along late ductile shear zones from the Eastern Ghats belt, India. Gondwana Research, 3(1), 55-63.

ⓘ Phlogopite

Formula: KMg₃(AlSi₃O₁₀)(OH)₂

References:

Gondwana Research 3(1): 65-77.

Bhowmik, S. K. (2000). Ultrapotassic rocks along late ductile shear zones from the Eastern Ghats belt, India. Gondwana Research, 3(1), 55-63.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘ	Graphite	1.CB.05a	C
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Dolomite	5.AB.10	CaMg(CO₃)₂
Group 9 - Silicates
ⓘ	Diopside	9.DA.15	CaMgSi₂O₆
ⓘ	Phlogopite	9.EC.20	KMg₃(AlSi₃O₁₀)(OH)₂
ⓘ	Kalsilite	9.FA.05	KAlSiO₄
ⓘ	Anorthite	9.FA.35	Ca(Al₂Si₂O₈)
ⓘ	Meionite	9.FB.15	Ca₄Al₆Si₆O₂₄CO₃
ⓘ	Leucite	9.GB.05	K(AlSi₂O₆)
Unclassified
ⓘ	'K Feldspar'	-
ⓘ	'Apatite'	-	Ca₅(PO₄)₃(Cl/F/OH)
ⓘ	'Leptynite'	-

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
H	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Dolomite	CaMg(CO₃)₂
C	ⓘ Graphite	C
C	ⓘ Meionite	Ca₄Al₆Si₆O₂₄CO₃
O	Oxygen
O	ⓘ Anorthite	Ca(Al₂Si₂O₈)
O	ⓘ Calcite	CaCO₃
O	ⓘ Diopside	CaMgSi₂O₆
O	ⓘ Dolomite	CaMg(CO₃)₂
O	ⓘ Kalsilite	KAlSiO₄
O	ⓘ Leucite	K(AlSi₂O₆)
O	ⓘ Meionite	Ca₄Al₆Si₆O₂₄CO₃
O	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
O	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
F	Fluorine
F	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Na	Sodium
Na	ⓘ Meionite	Ca₄Al₆Si₆O₂₄CO₃
Mg	Magnesium
Mg	ⓘ Diopside	CaMgSi₂O₆
Mg	ⓘ Dolomite	CaMg(CO₃)₂
Mg	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Al	Aluminium
Al	ⓘ Anorthite	Ca(Al₂Si₂O₈)
Al	ⓘ Kalsilite	KAlSiO₄
Al	ⓘ Leucite	K(AlSi₂O₆)
Al	ⓘ Meionite	Ca₄Al₆Si₆O₂₄CO₃
Al	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ Anorthite	Ca(Al₂Si₂O₈)
Si	ⓘ Diopside	CaMgSi₂O₆
Si	ⓘ Kalsilite	KAlSiO₄
Si	ⓘ Leucite	K(AlSi₂O₆)
Si	ⓘ Meionite	Ca₄Al₆Si₆O₂₄CO₃
Si	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
P	Phosphorus
P	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
S	Sulfur
S	ⓘ Meionite	Ca₄Al₆Si₆O₂₄CO₃
Cl	Chlorine
Cl	ⓘ Meionite	Ca₄Al₆Si₆O₂₄CO₃
Cl	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
K	Potassium
K	ⓘ Kalsilite	KAlSiO₄
K	ⓘ Leucite	K(AlSi₂O₆)
K	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Anorthite	Ca(Al₂Si₂O₈)
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Diopside	CaMgSi₂O₆
Ca	ⓘ Dolomite	CaMg(CO₃)₂
Ca	ⓘ Meionite	Ca₄Al₆Si₆O₂₄CO₃
Ca	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)

Other Regions, Features and Areas containing this locality

AsiaContinent

India

Andhra Pradesh
- ⭔North AndhraRegion
Eastern GhatsMetamorphic belt

Indian Plate (India Plate)Tectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Ramam, P. K., & Viswanathan, T. V. (1977). Carbonatite Complex near Borra, Visakhapatnam District Andhra Pradesh. Geological Society of India, 18(11), 605-610.

Rao, A. T. (1989). Archaean carbonate rocks (carbonatites?) from Borra region in the Eastern Ghats mobile belt, India. Current Science, 168-172.

Bhowmik, S. K. (2000). Ultrapotassic rocks along late ductile shear zones from the Eastern Ghats belt, India. Gondwana Research, 3(1), 55-63.

Le Bas, M. J., Subbarao, K. V., & Walsh, J. N. (2002). Metacarbonatite or marble?—the case of the carbonate, pyroxenite, calcite–apatite rock complex at Borra, Eastern Ghats, India. Journal of Asian Earth Sciences, 20(2), 127-140.

Woolley, Alan R. (2019) Alkaline Rocks and Carbonatites of the World. Part 4: Antarctica, Asia and Europe (excluding the former USSR), Australasia and Oceanic Islands. The Geological Society of London. doi:10.1144/mpar4p.102

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Borra, Paderu, Visakhapatnam District, Andhra Pradesh, IndiaiRegional Level TypesBorraGroup of Occurrences PaderuVillage District Visakhapatnam DistrictDistrict Andhra PradeshState IndiaCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Mineral List

Rock Types Recorded

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Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

References

Borra, Paderu, Visakhapatnam District, Andhra Pradesh, India i
Regional Level Types
Borra Group of Occurrences
Paderu Village District
Visakhapatnam District District
Andhra Pradesh State
India Country