Not mention, my fingers are dyed blue from the solution, which is so opaque that you cannot see the hedgehog anyway.Would like something other than the form letter attached to the other negative reviews, but, again, not holding my breath.This was a Christmas gift for my seven-year-old. I tried putting it back together, putting it back in, and holding it down with the stick, hoping the rock might saturate a bit and hold the plastic hedgehog down - no luck.So, now, we have the rock in without the hedgehog and hopefully at least will get some crystals, though I'm not holding my breath. When I went to put in the hedgehog with the seed stone on the back, the stone wasn't heavy enough to hold down the hedgehog, which floated and upended the whole thing and the seed stone fell out (the little poster mount on the hedgehog lost all of its adhesiveness the second it hit the liquid). I followed the instructions to the letter, including letting the water cool for an hour. Note: Crystal growth can be affected by a number of variables. High quality materials - Exceptional crystal-growing experience.Hedgehog figurine measures 3.25 x 2 x 1.5 inches (before crystals have been grown).Includes crystal powder, growing container, stirring stick, gypsum base, hedgehog figurine.Available in 5 fun colors - Blue, green, orange, pink, red.Simple instructions - Crystals only take one day to grow.Inspires a passion for scientific learning and exploration.Science kit for growing gypsum crystals on the back of a hedgehog figurine.One day later and - (insert drum-roll) - Ta-da! Covering the hedgehog's entire back is a huge, spiky cluster of glimmering, colorful, sturdy, solid crystals!Д®xperience the playful side of science with the Crystal Growing Hedgehog, available in five fun colors. Weinrich Minerals, Inc.This hedgehog has a big problem: it doesn't have any spines! And the only way it's ever going to get some? SCIENCE!ДЇollowing the detailed instructions, young scientists simply mix the special solution into a container of boiling water and then set the poor, spineless hedgehog into the mixture. Kami MENERIMA KURSUS SISTIM PRAKTIK LANGSUNG dan KURSUS SISTIM JARAK JAUH dengan SISTIM PAKET Menggunakan Usaha Jasa : Paket POS, Tiki, JNE, ELTEHA, PAHALA, PANDU, Travel, Dll. Rock and Mineral Shows Google Search for Gypsum McDougall Minerals Google Search for Gypsum John Betts Fine Minerals Search for Gypsum

Google Search for GypsumД®xceptional Minerals Google Search for Gypsum GRapi = 0 (Gamma Ray American Petroleum Institute Units) Gypsum is Not RadioactiveДў9.06.03.01 (29)Hydrated Acid and SulfatesД 7.CD.40 07 - SULFATES (SELENATES, TELLURATES)Д 7.C - Sulfates (selenates, etc.) without Additional Anions, with H2OДў5 - University of Colorado - Mineral Structure DataДakota Matrix Minerals Google Search for GypsumД®xcalibur Mineral Corp. PE Gypsum = 3.97 barns/electron U=PE Gypsum x rElectron Density= 9.37 barns/cc. Dispersion strong, r > v.Д«ulk Density (Electron Density)=2.36 gm/cc note: Specific Gravity of Gypsum =2.31 gm/cc. Tabular - Form dimensions are thin in one direction.ДЇluorescent and phosphorescent, Short UV=orange yellow, Long UV=orange yellow.Д¬I meas= -0.027 (Excellent) - where the CI = (1-K P Dmeas/K C)Д¬I calc= -0.022 (Excellent) - where the CI = (1-K P Dcalc/K C) Massive - Fibrous - Distinctly fibrous fine-grained forms. asbestos).Д¬rystalline - Coarse - Occurs as well-formed coarse sized crystals. The main gypsum crystal is 11.2 cm in length. White, Colorless, Yellowish white, Greenish white, Brown.ДЇibrous - Thin, elongated fractures produced by crystal forms or intersecting cleavages (e.g. A pearly, nearly transparent gypsum cluster rises at a 45 degree angle from a matrix of nearly massive calcite. View Additional jPOWD Structure files for Gypsum Schofield P F, Knight K S, Stretton I C, American Mineralogist, 81 (1996) p.847-851, Thermal expansion of gypsum investigated by neutron powder diffraction, T = 4.2 K Warning: this large pop-up is very compute intensive and Selenite from the Greek in allusion to its pearly luster (moon light) on cleavage fragments.Д¬omments: Pencil-sized acicular crystals of gypsum. Link to Location Data.ДЇrom the Greek, gyps meaning 'burned' mineral.

Crystal maker image for gypsum