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Pectolite is a white to gray mineral, Na Ca 2 Si 3 O 8 (OH), a sodium calcium hydroxide inosilicate. It crystallizes in the triclinic system typically occurring in radiated or fibrous crystalline masses. It has a Mohs hardness of 4.5 to 5 and a specific gravity of 2.7 to 2.9. A highly sought-after variety known as larimar, is a pale to sky blue ...
The Ringing Rocks Pluton is located on the southwestern flank of Dry Mountain in Jefferson County, 15 miles southeast of Butte in T.2 N., R.5 W., sections 4 and 9. Section 4 is included in the Deerlodge National Forest, and section 9 is under the jurisdiction of the U.S. Bureau of Land Management.
Wayland in Fredrik Sander's 1893 Swedish edition of the Poetic Edda. In Germanic mythology, Wayland the Smith (Old English: Wēland; Old Norse: Vǫlundr [ˈvɔlundr̩], Velent; Old Frisian: Wela(n)du; German: Wieland der Schmied; Old High German: Wiolant; Galans (Galant) in Old French; [1] Proto-Germanic: * Wēlandaz from *Wilą-ndz, lit. "crafting one" [2]) is a master blacksmith originating ...
A stone is ground into shape (often a cabochon or a short, wide cylinder) and polished to a shine. Sometimes the flat surface is engraved with a religious motto in Arabic, which is sometimes inlaid with gold. The finished gem is then mounted on a ring according to the stones finished size. Both men and women wear aqiq rings as jewellery.
Similar objects can be found on all continents except Antarctica. They are associated with Celtic Europe, prehistoric Australia, Borneo and the Middle East.Some of the earliest cupules can be found at the Bhimbetka cave site in India, dating to 290,000-700,000 BCE, but in Europe they do not pre-date the most recent cold phase (the Würm or Weichselian glaciation).
Labradorite ((Ca, Na)(Al, Si) 4 O 8) is a calcium-enriched feldspar mineral first identified in Labrador, Canada, which can display an iridescent effect . Labradorite is an intermediate to calcic member of the plagioclase series. It has an anorthite percentage (%An) of between 50 and 70. The specific gravity ranges from 2.68 to 2.72.
Lifting a stone at Harri-jasotzaileak event in the Basque Country. Lifting stones are heavy natural stones which people are challenged to lift, proving their strength. They are common throughout Northern Europe, particularly Iceland (where they are referred to as steintökin), Ireland, Scotland, Basque Country, Faroe Islands, Wales, North West England centered around Cumbria, Switzerland ...
About 85% of stones occur in the submandibular gland, [3] and 5–10% occur in the parotid gland. [2] In about 0–5% of cases, the sublingual gland or a minor salivary gland is affected. [ 2 ] When minor glands are rarely involved, caliculi are more likely in the minor glands of the buccal mucosa and the maxillary labial mucosa. [ 4 ]