डार्क एसिड ग्रैनिटिक ग्लास

pitchstone शब्द के हिंदी अर्थ का उदाहरण:

ग्रेनाइट, बेसाल्ट, गैब्रो, ऑब्सीडियन, डायोराईट, डोलोराईट, एन्डेसाईट, पेरिड़ोटाईट, फेलसाईट, पिचस्टोन, प्युमाइस इत्यादि आग्नेय चट्टानों के प्रमुख उदाहरण है।

रायोलाइट के ऐसे काँचाभ रूप को ऑब्सीडियन (Obsidian), या पिचस्टोन (Pitchstone) कहते हैं।

জজজ

pitchstone's Usage Examples:

pitchstone flake should also be noted.

In the south of the island there are sills and dykes of felsite, quartz-porphyry, rhyolite, trachyte and pitchstone.

The pitchstone of the Scuir of Eigg is at its margins characterized by a dull semi-opaque matrix which seems to be the result of secondary devitrification.

In Arran there are pitchstone dikes, some of which are very completely vitreous, while others are changed to spherulitic felsites more or less silicified.

Pitchstone >>

pitchstone's Meaning':

dark acid granitic glass