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2. Crystal healing - Wikipedia

   en.wikipedia.org/wiki/Crystal_healing

   Crystal healing is a pseudoscientific alternative-medicine practice that uses semiprecious stones and crystals such as quartz, agate, amethyst or opal. Despite the common use of the term "crystal", many popular stones used in crystal healing, such as obsidian, are not technically crystals. Adherents of the practice claim that these have healing ...

3. Hadean zircon - Wikipedia

   en.wikipedia.org/wiki/Hadean_zircon

   Hadean zircon is the oldest-surviving crustal material from the Earth's earliest geological time period, the Hadean eon, about 4 billion years ago. Zircon is a mineral that is commonly used for radiometric dating because it is highly resistant to chemical changes and appears in the form of small crystals or grains in most igneous and metamorphic host rocks.

4. Ancient crystals reveal the earliest evidence of fresh water ...

   www.aol.com/ancient-crystals-reveal-earliest...

   A new analysis of ancient grains of crystal embedded in rock from the Australian outback suggests Earth had dry land and fresh water some 4 billion years ago — a time when scientists had thought ...

5. Oldest dated rocks - Wikipedia

   en.wikipedia.org/wiki/Oldest_dated_rocks

   The Acasta Gneiss in the Canadian Shield in the Northwest Territories, Canada is composed of the Archaean igneous and gneissic cores of ancient mountain chains that have been exposed in a glacial peneplain. Analyses of zircons from a felsic orthogneiss with presumed granitic protolith returned an age of 4.031 ±0.003 Ga. [1]

6. Fresh water present on Earth ‘500 million years earlier than ...

   www.aol.com/fresh-water-present-earth-500...

   The findings challenge the existing theory that the planet was completely covered by ocean four billion years ago.

7. Jack Hills - Wikipedia

   en.wikipedia.org/wiki/Jack_Hills

   Quartz-pebble metaconglomerate (Jack Hills Quartzite), the rock type that contains Earth's oldest dated mineral grains (detrital zircon) Detrital zircons with ages greater than 4 billion years old have been found in these rocks, and a 4,404 ± 8 million year old zircon was found at Erawandoo Hill; [4] this is the oldest dated material originating on Earth; the date is in the Cryptic era of the ...

8. Crystal - Wikipedia

   en.wikipedia.org/wiki/Crystal

   The process of crystal formation via mechanisms of crystal growth is called crystallization or solidification. The word crystal derives from the Ancient Greek word κρύσταλλος (krustallos), meaning both "ice" and "rock crystal", [3] from κρύος (kruos), "icy cold, frost". [4] [5]

9. Gemstones in the Bible - Wikipedia

   en.wikipedia.org/wiki/Gemstones_in_the_Bible

   Crystal quartz is a transparent crystalline variety of the mineral quartz, resembling glass. Job lists gavish (crystal quartz) alongside gold, onyx, lapis lazuli, glass, coral, and peridot as a valuable trade good. The Hebrew word gavish is a wanderwort, which probably originated in historical Nubia, modern Sudan.