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Bluestone

Quarried in the northeast U.S., this sandstone is known for its quality, unique finishes and lovely color variations, making it an ideal architectural building material. One of the most durable natural stones, bluestone will withstand any climate even the harsh New England winter and freeze/thaw climate. Fortunately for us, this stone is found right in our back yard, giving us access to an abundant supply of the best material we could ask for. Refined enough for elegant indoor use (think flooring, countertops and fireplaces), yet durable enough for the wear and tear of exterior landscaping, bluestone is our tried and true prize building material. For you, choosing this stone is a wonderful way to connect your living space to your natural environment.

New York Bluestone Pennsylvania Bluestone
Edges: Edges:
Sawn and snapped edges. Sawn edges only.
Patterns: Patterns:
Irregular flagging with snapped edges Random Rectangular flagging with sawn and/or snapped edges. Irregular and Random Rectangular patterns with sawn edges only.
Color: Color:
Full Color (includes shades of purple, green, rust and blue with occasional veining typically) Lilac Clear (no shades of purple, green or rust) Blue Grey Select Full Color Lilac
Treads: Treads:
Flamed Top Natural Cleft (special order) Flamed Top, Flamed 1 long Sawn Back, Sawn 3 sides
Finishes: Finishes:
Natural Cleft Flamed Natural Cleft Flamed
Other: Other:
- A metamorphic sandstone native to the Appalachian Plateau. - Typically free of Black Jack ore. Consists of Iron ore. - Fine to medium grain texture. - Metamorphic sandstone native to Pennsylvania’s mountain ranges. - Readily available in all formats (Paving, Treads, etc) at CT Stone.

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FAQs
Why is Bluestone the most popular natural stone in New England for exterior pools, patios and walkways? Bluestone is known for it’s durability, natural beauty and all while being an economical choice. It’s user friendly for all the DIY consumers.
What is Irregular Flagging? Irregular flagging are random mosaic pieces of flagging.
What is Thermal Flagging? Thermal flagging is the highest quality flagging which is sawn on all 6 sides and then thermaled (flamed) on one face to give it a natural look. Thermaling controls thickness and keeps it uniform for easier installation and reduces trip hazard.
What’s the difference between flagstone and bluestone? Bluestone is a type of flagstone. Flagstone is a generic term used to describe natural stone that is suitable for horizontal planes that will be walked on.
What are the cleft variations? Generally there will be at least a 1/2" – 3/4" variation in thickness.
What is it set in? Dry vs Wet If the material is 1" or less in thickness it should be set in cement – if it’s 1 ½" or more it can be set in stonedust.
What are the available sizes? Flagging ranges in size starting from 12"x12" up to 24"x36" going up in increments of 6". Larger sizes are available upon request.
Does it get slippery? Generally Bluestone does not get slippery.
Does it conduct a lot of heat in the summer? Bluestone can get warm when in direct sunlight but it is not known to be a particularly high-heat conducting material.