Tag Archives: limestone

The hardness of natural stone

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Why is it important to know the hardness of natural stone? The hardness of stone can decide, for example, how easily natural stone can be polished, and how long this polishing will last. The so-called Mohs scale is a scale ranging from 1 to 10, with ten being the hardest. This scale is a relative […]

Vratsa

Vratsa

Vratsa derives its name from the largest city in northwestern Bulgaria. The stone is actively quarried in the Vratsa district, particularly around the villages of Gorna Kremena and Varbeshnitsa. Vratsa is a very robust and frost-resistant stone, a fact that explains why it is so often a familiar sight in many countries of central and […]

The Leaning Tower of Pisa

Leaning Tower of Pisa

Date built: 1372Height: 55.8mOriginal use: Churches bell towerUse during history: Supposedly by Galileo Galilei for his free fall experiments; during WW II Germans used it as an observation post Use nowadays: As a tourist attractionMaterial: Marble and limestone The tower of Pisa is amongst the four structures that make up the cathedral complex of Pisa, […]

Parthenon

Parthenon

Location: Athens, Greece Date built: 447 – 438 BC (decorations continued till 432 BC) Height: 18 m Base Area: 69.5 x 30.9 metres Dedicated to: Goddess Athena Material: Marble and limestone Located on the Acropolis of Athens, Parthenon was built in the age of Pericles between 447 and 432 BCE and was dedicated to the […]