Serving San Jose and the Surrounding Areas

Hera Tile & Stone
Natural stone tiles

Enjoy the beauty of natural stone in your home

Enhance the look and feel of your home with natural stone from Hera Tile & Stone. As owners of our own factory and quarry, you're able to receive direct prices that are typically 25% - 30% cheaper than anyone else! Contact us today to get started.

Natural stone is classified into two categories: siliceous or calcareous. It's important to know the differences between the two when selecting cleaning products.


Siliceous stone is mainly made up of silica or quartz-like particles. It's durable, and easy to clean with mild acidic solutions. Types of siliceous stone include granite, slate, sandstone, quartzite, brownstone and bluestone.


Calcareous stone is made up of mainly calcium carbonate. It's sensitive to acidic cleaning products, and normally needs different cleaning procedures than siliceous stone.


Types of calcareous stone include marble, travertine, limestone and onyx.


Different cleaning solutions and methods may be required, depending on the type of stone involved.

Know your stone

An acid sensitivity test will allow you to determine the type of stone you have. It requires about 4 oz. of a 10% solution of muriatic acid and an eyedropper. Household vinegar may also be used.


Select a discreet area such as a corner, or in a closet for testing, as the test may permanently etch your stone. Apply a few drops of the solution to the stone, several inches away from a mortar joint.


Calcareous stone will cause the solution to bubble or fizz vigorously. No reaction indicates a siliceous stone. Rinse the area thoroughly with clean water and wipe it dry.


Surface sealers or polishes may diminish the effectiveness of the test. If a sealer is present, a small chip can be made in the stone's surface and the acid solution can be applied in that spot.


Muriatic acid is corrosive and is considered a hazardous substance, so caution should always be taken when performing such a test with protective clothing.

How to determine your stone type

Call to find the perfect stone for your space!


Bulk discounts are available!

Granite is a great choice for countertops, floors and other surfaces that see heavy use. Although extremely hard-wearing, it's not impervious to stains, and any stain removal needs to be performed by a professional.


Limestone is a popular choice among decorators for its soft earth tones. It's a popular choice for intricately carved features, moldings and statues. Limestone has subtle color variations in warmer beiges and softer grays and greens.


Marble is known for its beauty and elegance. It's commonly used in countertops, floors, foyers, fireplace facings, hearths, walls, and windowsills. It offers a naturally random appearance, and can be used in wet area applications.


Onyx is a sedimentary rock formed in cave interiors. It features a translucent appearance, and is considered one of the most decoratively appealing stones. It is, however, vulnerable to chemical and abrasive substances.


Slate is a fine-grained rock with a textured, rustic appearance. It is traditionally used as tabletops in chemistry labs due to its chemical and stain resistance. For this reason, it's also a popular choice in kitchens.


Slate is available in shades of black and gray, maroons, rusts, and greens. It's an excellent exterior material.


Travertine is formed by underground springs, rivers and other sources of water. It is a smooth, hard stone that offers a beautifully smooth, dense surface with a creamy color.


Phone Granite Marble Limestone Slate Travertine Onyx Natural stone Natural stone