Greenstone Structures is an offsite construction company that designs, manufactures, and installs light gauge steel frame structures for use in residential and commercial projects throughout Ireland and the UK. We use innovative modern methods of construction and the latest technology in building information modelling software to supply premium ...Jade, greenstone, or pounamu? | Mountain Jade NZ2018-8-2 · Pounamu refers to several types of hard, durable and highly valued nephrite jade, bowenite, or serpentinite stone found in southern New Zealand. While pounamu is the Māori name, these rocks are also generically known as "greenstone" in New Zealand English. At Mountain Jade, we use a variety of nephrite jade types from around the world to craft ...Neolithic Greenstone Axe ''Factory'', Polstrong Valley, …2021-10-9 · Stone axes made with so called ''ground cutting edges'' appear to have first developed in Australia, where some axe fragments have been found to date back at least 44,000 years. However, the innovation of the sharp ground-edged axe seems to have reached Europe much later, in the Neolithic period around 6000 years ago.