An aesthetic, divergent, skyscraper-like spray of very lightweight, tan thenardite pseudomorphing mirabilite crystals from the Boron area of California. The sharp crystals are beautifully hoppered and the long crystals look just like Art Deco skyscrapers. Ex. Jim Minette Collection. From Rock Currier: "Those specimens showing the long prismatic mirabilite were collected by Jim Minette from the settling ponds out west of the big open pit mine. They take the mud slurry from the million gallon plus round dissolving tanks that are used at the refinery to dissolve the crude borax ore and run it into the settling ponds to settle out the fine mud/clay particles. Any water that is not evaporated naturally, they run back through the system. Sometimes the water in these ponds is saturated with sulfate and under the right temperature conditions, usually early in the morning, crystals of mirabilite grow rapidly in the ponds, and in the ones that Jim collated the mirabilite grew in prismatic crystals. Some of these had a little "iron" in them, so when the crystals dried out they were pink in color. Jim would put them on the bank of the pond and when they dried enough he would take them home and spray them with Krylon plastic to preserve them."
Attributsiya: Rob Lavinsky, iRocks.com – CC-BY-SA-3.0
Siz erkinsiz:
ulashishga – ishlanmani nusxalash, tarqatish va uzatish
remiks qilishga – ishni moslashtirishga
Quyidagi shartlar asosida:
atribut – Siz tegishli litsenziyaga havolani taqdim etishingiz va oʻzgartirishlar kiritilganligini koʻrsatishingiz kerak. Siz buni har qanday oqilona yoʻl bilan qilishingiz mumkin, lekin litsenziar Sizni yoki Sizning foydalanishingizni ma'qullashini taklif qiladigan tarzda emas.
bir xil ulashish – Agar Siz materialni remiks qilsangiz, oʻzgartirsangiz yoki unga asoslansangiz, oʻz hissalaringizni asl nusxadagi kabi bir xil yoki mos litsenziya ostida tarqatishingiz kerak.
This work is free and may be used by anyone for any purpose. If you wish to use this content, you do not need to request permission as long as you follow any licensing requirements mentioned on this page.
The Wikimedia Foundation has received an e-mail confirming that the copyright holder has approved publication under the terms mentioned on this page. This correspondence has been reviewed by a Volunteer Response Team (VRT) member and stored in our permission archive. The correspondence is available to trusted volunteers as ticket #2010022810018255.