bluestone


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bluestone,

common name for the blue, crystalline heptahydrate of cupric sulfatecupric sulfate
or copper (II) sulfate,
chemical compound, CuSO4, taking the form of white rhombohedral crystals or amorphous powder. It decomposes at 650°C; to cupric oxide (CuO).
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 called chalcanthite, a minor ore of copper. It also refers to a fine-grained, light to dark colored blue-gray sandstonesandstone,
sedimentary rock formed by the cementing together of grains of sand. The usual cementing material in sandstone is calcium carbonate, iron oxides, or silica, and the hardness of sandstone varies according to the character of the cementing material; quartz sandstones
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. Deposits are extensively quarried as flagstone (paving stone) in New York and Pennsylvania and used commercially for buildings and paving stone.

bluestone

A dense fine-grained sandstone that splits easily along bedding planes to form thin slabs. See also: Stone

bluestone

[′blü‚stōn]
(mineralogy)
(petrology)
A sandstone that is highly argillaceous and of even texture and bedding.
The commercial name for a feldspathic sandstone that is dark bluish gray; it is easily split into thin slabs and used as flagstone.

bluestone

A hard, fine-grained, commonly feldspathic and micaceous sandstone or siltstone of dark greenish to bluish gray color that splits readily along bedding planes to form thin slabs; commonly used to pave surfaces for pedestrian traffic. A variety of flagstone.
References in periodicals archive ?
BlueStone participated in its first Eagle Ford well earlier this year, which has been drilled and is awaiting completion.
On this, the third day of our week of fantastic Bluestone competitions, we'regiving away two perfect breaks for couples: a week, and a weekend, in a one-bedroom cottage.
The Bluestones do realize that one cannot just wait for a restructured workplace to happen.
In Philadelphia, Bluestone successfully closed $48M in high profile transactions including $21M in permanent financing for Tower Investment's Erbe Apartment complex in Northern Liberties and $17M in redevelopment financing for the Robert Morris Building in Center City.
BlueStone was formed in February 2006 utilizing funds from the management team and Natural Gas Partners.
To keep up with the demand for energy conservation projects throughout its six offices, Bluestone Energy is adding three new members to its business development and sales force, including: Barbara Ayotte, Business Development Manager; Sandy Barrier, Business Development Manager, Mid-Atlantic Region; and Tim Hirschenhofer, Director of Data Center Energy Engineering.
0, which was announced at the JavaOne(SM) 2000 developer's conference June 6-8 and which will be the version bundled for Bluestone customers, developers can use its highly graphical interface to quickly generate EJB entity beans that automatically map to all data sources supported by Cerebellum.
We at Bluestone Energy are thrilled to bring on a seasoned business-development professional like Doug Jaeger and continue our national expansion ahead of schedule," said Peter Fairbanks, President of Bluestone Energy.
As a result of today's announcement, Bluestone will leverage Intraware's web-based product research, electronic software purchase and delivery, and software management services to streamline customers' technology assessment efforts and accelerate product sales.
Since establishing the supermarket division in 2008, Bluestone Energy has helped both independent and large multinational supermarket chains throughout the Northeast save over thirty million kilowatt hours and secure over $3m in utility incentives.
Stan Bluestone, Mike MacDonald and their management team have stabilized the business while achieving all of the objectives they set in order to emerge from Chapter 11 successfully.
Prior to joining Bluestone Energy, Ferry was a sales engineer for NER Data Products, a data center infrastructure solutions company.