Dark, weathered rock from volcanic flows, as old as the earth itself.
Ancient Lavastone is a dark grey, close to brown.
It can be described as dark, dim, somber and gloomy.
Set in white, because white reads best on it.
Ancient history is a time period from the beginning of writing and recorded human history through late antiquity. The span of recorded history is roughly 5,000 years, beginning with the development of Sumerian cuneiform script. Ancient history covers all continents inhabited by humans in the period 3000 BC – AD 500.
Read on WikipediaA lava filter is a biological filter that uses lavastone pebbles as support material on which microorganisms can grow in a thin biofilm. This community of microorganisms, known as the periphyton, break down the odor components in the air, such as hydrogen sulfide. The biodegradation processes that occurs is provided by the bacteria themselves. In order for this to work, sufficient oxygen as well as water and nutrients is to be supplied.
Read on WikipediaAdjective
Noun