What's the difference between limestone and wollastonite?
Limestone
Definition:
(n.) A rock consisting chiefly of calcium carbonate or carbonate of lime. It sometimes contains also magnesium carbonate, and is then called magnesian or dolomitic limestone. Crystalline limestone is called marble.
Example Sentences:
(1) Another pint of Guinness That evening we set out again, this time to O'Donoghue's in Fanore, a blue-painted stone pub set on the thin shelf of land between the sea and the great limestone mountain that is called the Burren.
(2) Using Koufonissi as a base, there are daily excursions by caique and ferry to nearby islands, including Iraklia, where walkers can follow a pilgrims' trail across the high lands to spectacular St John's Cave, carved into a limestone cliff.
(3) Bacterial counts did not differ between sand and crushed limestone.
(4) Earlier this year, a century-old wasteland of limestone and red dirt in south-west Nigeria was transformed into the biggest cement plant in Africa.
(5) Built on a scrubby ridge of limestone pavement, the houses of Khirbet Susiya are closely overlooked by a neighbouring Israeli settlement built on land expropriated from the villagers – illegal under international law – and, unlike the Palestinian village, connected to public services.
(6) Effects were evaluated of high dietary levels of magnesium oxide (MgO) or limestone on DM, OM and CP digestibility, N balance and intestinal absorption of amino acids by lambs fed a high concentrate diet.
(7) FIVE MORE FRENCH COASTAL GEMS Marseille grotto Facebook Twitter Pinterest Photograph: Alamy A 40-minute walk from Marseille’s Luminy university campus, Calanque de Sugiton, the most picturesque of the city’s rugged, limestone coves has blue-green waters, twisted pine trees and a narrow island-rock to swim out to known as Le Torpilleur.
(8) Limestone supplied supplemental Ca and treatment P levels were supplied by monosodium phosphate.
(9) Off the south-west coast of Ibiza stands Es Vedrà, a 400m-high limestone rock which legend suggests was the island of the Sirens who lured sailors to their deaths in Homer's Odyssey.
(10) Diets containing 25:75 corn silage to concentrates and .95% calcium from either coarse or fine limestone were fed to rumen-fistulated heifers.
(11) Treatments included control diet alone or control diet with the addition of 1.60% defluorinated rock phosphate-medium (DRP-M, 77% greater than 150 mu but less than 1,180 mu), 1.60% defluorinated rock phosphate-coarse (DRP-C, 85% greater than 850 mu but less than 1,700 mu), 1.28% limestone (92% greater than 150 mu but less than 850 mu) or .50% MgO, (81% greater than 250 mu but less than 1,180 mu), as an as-fed basis.
(12) The in vivo Ca solubilization in hens was determined by subtracting Ca recovered as limestone in the excreta (by repeated washing) from Ca fed as limestone.
(13) Detail from a Mayan limestone relief of a blood-letting ritual.
(14) Milk, flavor score was acceptable but tended to be lower for milk from cows fed sunflower seeds with additional limestone (8.4, 8.5, and 7.9).
(15) Target Field, a $545m limestone-encased jewel that opened in 2010, produced an All-Star cycle just eight batters in, with hitters showing off flashy neon-bright spikes and fielders wearing All-Star caps with special designs for the first time.
(16) A highly reactive limestone was selected for use in two digestion trials with Holstein steers.
(17) The Florida resort lies less than 10 feet above sea level; an increasing number of tropical storms are inundating the city; and it is built on a dome of porous limestone which is absorbing the rising seawater.
(18) Stand on the limestone pavement near Long Churn Cave in the Yorkshire Dales and it feels as if you are standing on top of time itself.
(19) Approximately 14 days after exploring a limestone cave in northcentral Florida in February 1973, an 18-year-old female developed a respiratory illness with pronounced shortness of breath and cyanosis.
(20) There's limestone and sandstone to the north, but Aswan's bedrock is hornblende granite.
Wollastonite
Definition:
(n.) A silicate of lime of a white to gray, red, or yellow color, occurring generally in cleavable masses, rarely in tabular crystals; tabular spar.
Example Sentences:
(1) In the first experiment, rectangular specimens (5 mm X 5 mm X 25 mm) of apatite-wollastonite containing glass-ceramics (designated A.W-GC) were used.
(2) Quartz and chrysotile caused prominent light emission by 6-day-old macrophages, whereas titanium dioxide and wollastonite caused weak responses.
(3) The results suggest that richterite (with wollastonite) belongs to a group of fibrous minerals which have distinctly smaller biological effect than traditional asbestos minerals.
(4) The ability of different mineral fibres (rock wool, glass wool, ceramic fibres, chrysotile A, chrysotile B, amosite, crocidolite, antophyllite, erionite, and wollastonite) to stimulate hydrogen peroxide (H2O2) and hydroxyl radical (OH.)
(5) Relatively thick rock and ceramic fibres (median greater than 1 micron) induced tumours, but slag and wollastonite fibres did not, probably because of their better solubility.
(6) Aliquots of crocidolite and chrysotile asbestos, Kevlar aramid, wollastonite, polyacrylonitrile (pan)-based carbon, and glass fibers were incubated with either saline, bleach, or KOH and then filtered.
(7) Glass-ceramic implants containing apatite and wollastonite were studied under load-bearing conditions in a segmental replacement model in the tibia of the rabbit.
(8) A-W-CP-GC contains oxyapatite and fluoroapatite (20 wt%), beta-wollastonite (CaO X SiO2) (55 wt%), and beta-whitlockite (3CaO X P2O5) (15 wt%).
(9) Fibrogenous effects of wollastonite, chrysotile and crocidolite have been investigated in experiments on animals.
(10) Mechanical properties of bone implanted with a mixture of apatite-wollastonite containing glass ceramic (A-W.GC) granules and fibrin were examined by compression testing.
(11) Local leukocyte influx, proteinase, prostaglandin E2 (PGE2) and tumor necrosis factor (TNF) levels were measured after injection of hydroxyapatite ceramic (HAP), tricalcium phosphate ceramic (TCP) and apatite-wollastonite glass ceramic (GC) into the pouch.
(12) Twenty-two patients with neurologic deficit due to delayed posttraumatic vertebral collapse after osteoporotic compression fractures of the thoracolumbar spine underwent anterior decompression and reconstruction with bioactive Apatite-Wollastonite containing glass ceramic vertebral prosthesis and Kaneda instrumentation.
(13) The purpose of this study was to investigate bone formation after implantation of a mixture of apatite--wollastonite containing glass ceramic granules (A-W.GC, 220-355 microns) and fibrin glue with a low A-W.GC granular density.
(14) In this study, it was found that a Ca-P layer and a Si layer were formed on the interface of the mother glass of apatite-wollastonite containing glass-ceramics (designated AW) and bone tissue.
(15) In this study the bonding behaviour of glass ceramics, containing apatite and wollastonite, to bone tissue is shown to vary depending on the amount of alumina they contain.
(16) Local leukocyte influx, proteinase, prostaglandin E2 (PGE2) and tumor necrosis factor (TNF) levels were measured after injection of hydroxyapatite type I ceramic (HAP), tricalcium phosphate ceramic (TCP) and apatite-wollastonite glass ceramic (GC) into the pouch.
(17) Silicon elution was highest in Bioglass (BG), followed by Ceravital (KGS), apatite-wollastonite-containing glass ceramics (A-W.GC), and hydroxyapatite (HA), respectively.
(18) On the basis of their classification are chosen standards: sepiolite, wollastonite, palygorskite, etc., and their dispersion in needle-like fine dispersive particles, is studied.
(19) Rectangular plates (10 x 15 x 2 mm) made of apatite-wollastonite-containing glass ceramics were implanted in the proximal metaphyses of the bilateral tibiae of 20 rabbits, with DBP packed into the medullary cavity.
(20) Heat treatment of an MgO-CaO-SiO2-P2O5 glass gave a glass ceramic containing crystalline apatite (Ca10(PO4)6O,F2] and beta-wollastonite (CaO,SiO2) in an MgO-CaO-SiO2 glassy matrix.