Slate is a fine-grained, foliated, homogeneous metamorphic rock derived from clay, shale and etc. When struck with a specialized tool in the quarry, it tends to split along the cleavage plain and form smooth flat sheets of stone which have long been used for roofing, floor tiles, and other purposes. Slate is incredibly durable and can last several hundred years, with little or no maintenance.
China has become one of the major countries exporting finished and unfinished slate because of its vast slate deposits. Slate quarries were opened in several provinces, and these quarries together produce an amazing range of slates in various colors.
Natural riven stone tiles are manually 'split by hand' which produces an ideal cleft textured surface.
Most of our stone tiles are supplied as 'gauged' or 'semi-gauged' which means that it has undergone a grinding process that levels out one side of the tile creating a relatively flat surface. Once installed, the 'gauged' or 'semi-gauged' tile creates a smoother, more level floor as the thickness of each tile is fairly consistent.
The quarries for the following slates are still running, so they are available today.
The following slates are no longer available due to the exhaustion of slate resource. Showing them here is just for remembering those beauties of the old vanished slates.
To create a brushed finish (sometimes is referred to as a leathered finish), manufacturers gently brush the stone surface until it becomes textured and appears worn-in. The brushing process closes the stone pores which helps it to become more stain resistant. A brushed finish also hides fingerprints and water spots better than a polished surface. Like a honed finish, a brushed finish dilutes the color of the stone itself.
A honing/matt process is similar to polishing, it provides a smooth, satin-like nonreflective surface.
Slate can be polished some degree to obtain a honed finish - a smooth surface to the slate, a new option other than the riven finish.
The most common method of 'tumbling process' is to cut the stone to the same size and place them into a rubber drum / barrel along with abrasive grit (rocks, sand etc.) and water. The tiles are literally tumbled over and over while the sand, rocks and water wear down their edges and soften their finish. Tumbled tiles not only have slightly rounded edges and corners but also a smooth and worn look.
Ashlar patterned tiles are different sized slate stones which are cut and supplied together as a set, so the user scan make use these to make a desired pattern (i.e. brick pattern, Versailles pattern). Here are some examples.
The slate pattern can be used both indoors or outdoors. More people are using the slate pattern in kitchens or main living areas. If you have an existing concrete patio, walkway or pool deck, you can install the pattern directly over it for a rich look.
This is a demonstration of China Lotus slates (also called Earth slate) in the normal brick pattern. The size for each tile is 300x150mm with a cleft finish top.
This shows the most popular slate Rustic Multicolor (also called China Multicolor) in the normal brick pattern. The size for each tile is 300x150mm with a cleft finish top.
This demonstrates Golden Rust slate (also called California Gold) arranged in a
Versailles pattern. Tiles are supplied with combining sizes of 600x400mm, 400x400mm, 400x200mm and 200x200mm.
This shows China Gold slates in a normal sudoku pattern, each tile is cut-to-size 300x300mm with a riven/cleft finish.
The following slates are no longer available due to the exhaustion of slate resource. Showing them here is just for commemorating those beauties of the vanished slates.
This is a demonstration of Beijing Green slates in a normal brick pattern. The size for each tile is 300x150mm with a cleft top finish.
This is a demonstration of Sea Green slates in a normal brick pattern. The size for each tile is 300x150mm with a cleft top finish.
This is a demonstration of Charcoal Grey slates in a normal brick pattern. The size for each tile is 300x150mm with a cleft top finish.
This is a demonstration of another popular slate White Gold in a normal brick pattern. The size for each tile is 300x150mm with a cleft top finish.
This building which belongs to
China Central Academy of Fine Arts used Jstar Green slates for the exterior wall cladding.
In this indoor project, architect used China Black slate (riven finish) for the flooring.
This bathroom wall was applied with tumbled stones from China Gold slate and China Travertine.
This interior wall uses the rich-color China Gold slate for wall with slate-made mosaic borders as the ornament.
This outdoor paving project in Japan has chosen China Gold slate as the paving stone. The tiles are all cut-to-size 300x300mm with cleft/riven finish.
This balcony indoor application uses China Gold slate for both the wall cladding and the paving.