Abstract
During the study of tungsten (scheelite) occurrences in Çelebidağ region of
Keskin, garnet stone was encountered inside the skarn (tactite) zones. They were formed at the
contact between granodiorite batholith and cipolin marbles. These garnet stones, found approximately one km west of Çelebiköy, are typical contaet-metamorphic and pyrometasomatic rocks. The
genesis of garnet stones at Hacet Tepe forms a unit with other contact-metamorphic rocks. Mineralogically two subfacies are distinguished : a) grossularite stones, b) andradite stones.
Garnet which is considered a valuable natural abrasive has been successfully used in the industry. One of the things required in garnets is hardness. Laboratory tests run for grossularite
and andradite have shown their hardness approximately to correspond to 7 on the Mohs scale.
On the New York stock exchange market a ton of garnet concentrate sells for about $ 85.
References
- SEELEY W. MUDD SERİES (1949) : Industrial minerals and rocks. Second edition. Ncw York.
- RAYMOND B. LADOO and W. W. MYERS (1951) : Nonmetallic minerals. Second edition. McGraıv Hill Book Co.
- TAGGART (1956) : Ore Dressing, Nevv York.
- BUREAU OF MİNES MİNERALS YEARBOOK (1953) : Abrasive materials.
- MİNERALOGİST (LONDON) (1953) : Garnet again popular. Vol. 21, No. 11, November, p. 404.
- TOLUN, R. (1956) : Uludağ volfram cevherine ait konsantrasyon tecrübeleri ve kıymetlendirme etüdü. M. T. A. Derg., No. 48
Abstract
Keskin kazasına bağlı Çelebidağı bölgesindeki volfram (şelit) zuhuratının etüdü esnasında, skarn (tactite) zonlarında grenafelslere raslanmıştır. Bu grenafelsler Çelebidağı granodiorit
batolit ile sipolin mermerlerin kontaktlarında teşekkül etmişlerdir. Çelebi köyünün takriben l km
batısında bulunan bu grenafehler, tipik kontakt-metamorf ve pirometasomatik sahrelerdir. Hacettepe mevkiinde teşekkül etmiş grenafelslerin jenezi, diğer kontakt-metamorf sahrelerin jenezi ile
bir bütün arzetmektedir. Mineralojik bakımdan iki subfasies mevcuttur : a) grosularfels ve
b) andraditfels.
Kıymetli tabii abrazif olarak telâkki edilen grena, sanayide muvaffakiyetle kullanılmaktadır,
Grenada aranan vasıflardan biri sertlik derecesidir. Yapılan laboratuvar tecrübeleri ile gerek grosuların ve gerek andraditin sertlik derecesi, Mohs cetveline göre, 7 civarındadır. Grena konsantratının tonu, New York borsasına göre, 85 dolardır.
References
- SEELEY W. MUDD SERİES (1949) : Industrial minerals and rocks. Second edition. Ncw York.
- RAYMOND B. LADOO and W. W. MYERS (1951) : Nonmetallic minerals. Second edition. McGraıv Hill Book Co.
- TAGGART (1956) : Ore Dressing, Nevv York.
- BUREAU OF MİNES MİNERALS YEARBOOK (1953) : Abrasive materials.
- MİNERALOGİST (LONDON) (1953) : Garnet again popular. Vol. 21, No. 11, November, p. 404.
- TOLUN, R. (1956) : Uludağ volfram cevherine ait konsantrasyon tecrübeleri ve kıymetlendirme etüdü. M. T. A. Derg., No. 48
Details
| Primary Language | Turkish |
|---|---|
| Subjects | Engineering |
| Journal Section | Articles |
| Authors | |
| Publication Date | July 1, 1960 |
| Published in Issue | Year 1960 Volume: 54 Issue: 54 |
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