The Mineral Evolution database is currently under development.
The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.
This mineral is using an age reported as an element mineralization period.
O
This mineral is using an age calculated from all data at the locality.
R
The age displayed for this mineral originates from a different, non-child locality.
P
The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.
This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.Elements at this locality, including sub-localities: AlAsAuBBaCCaCeClCrCuFFeHKLiMgMnMoNaNbNiOPPbSSiTiUYZnElements from minerals reported directly at this locality: As Cu Fe H O S Si U Structural Groups for minerals in this locality:
Venkatampalle (Pipe-7) is of the Wajrakarur-Lattavaram cluster in the Warjrakarur Kimberlite Field. Occurs as a non-exposed dyke in the metabasalts of the Penakacherla schist belt.
Michelle_372
Gollapalle (CC-4) is of the Chigicherla cluster in the Warjrakarur Kimberlite Field. Emplaced in basement granitoids, it is a circular body of hard melanocratic and greenish black material. Weathered, carbonated and clay rich variety occurs here as well.
Michelle_373
Gollapalle (CC-5) is of the Chigicherla cluster in the Warjrakarur Kimberlite Field. Narrow pear shaped body emplaced into basement granitoid rocks. Crustal granitoid xenoliths are common with an abundance of kimberlite melt in melt segregations that give the appearance of a conglomerate.
Michelle_374
Gollapalle (CC-5) is of the Chigicherla cluster in the Warjrakarur Kimberlite Field. Narrow pear shaped body emplaced into basement granitoid rocks. Crustal granitoid xenoliths are common with an abundance of kimberlite melt in melt segregations that give the appearance of a conglomerate.
Michelle_375
Nagireddipalle (KL-3) is of the Kalyandurg cluster in the Warjrakarur Kimberlite Field.
Michelle_816
Found on weathered pegmatite of the Kodanda Rama Mine in the Nellore District. "Deveroite-(Ce) forms a white coating, sourrounding Allanite / Bastnäsite in Feldspar. I think the material was collect during prospecting works in the 1970. The orgin of Cerium is clear in this case, but the Oxalate is difficult, probably the roots of some trees."
Michelle_817
Minerals were collected from the mica mines, in Gudur Taluq, of the Nellore district in Andhra Pradesh. Pegmatitic veins in the area are emplaced in the country rock, consisting mainly of biotite-hornblende schists, minor quartizites and felspathic schists.
Michelle_818
Minerals were collected from the mica mines, in Gudur Taluq, of the Nellore district in Andhra Pradesh. Pegmatitic veins in the area are emplaced in the country rock, consisting mainly of biotite-hornblende schists, minor quartizites and felspathic schists.
Michelle_819
Minerals were collected from the mica mines, in Gudur Taluq, of the Nellore district in Andhra Pradesh. Pegmatitic veins in the area are emplaced in the country rock, consisting mainly of biotite-hornblende schists, minor quartizites and felspathic schists.
The muscovite age can be reconciled with the biotite age (487±17 m.y.) when its track length distribution curve is interpreted on a two-stage thermal annealing model and the necessary corrections are applied for the decrease of fossil track density.