Posted on

Using a Tumbler to clean rough opal

Welcome to our first tip for 2013.We are so looking forward to this year and have some great ideas on rough opal and cut stones to share. We want to help you all grow your opal knowledge and well as your collections so get ready for lots of information to come your way! This week’s tip focuses on rough opal. When you buy or mine opal it can often be covered in residual dirt that is way too hard to remove with normal washing. That is where a tumbler comes in handy. A tumbler is basically a barrel that sits in a small basket and is turned constantly over time.…

Read More
Posted on

Lightning Ridge Opal

There are many type of rough opal from many parts of the world. Rough opal comes in many forms shapes and sizes. In Ethiopia opal comes in a nobby like form that is usually brownish in tint. The opal looks very volcanic and porous, so water or liquids will soak into the opal easily. This type of opal has a tendency to crack or craze over time of being out of the ground and not under pressure. Brazilian opal comes in the form of seam opal that form in fissures and cavities in the high silica concentrated ground. THis opal is usually crystal opal and is mainly stable and not…

Read More
Posted on

Learn to slice a rough opal

Learn from master craftsman Justin from Black Opal Direct how to slice rough opal. Justin will show you the techniques to safe cutting whilst using a slicer. What are the advantages of learning to slice? When you are cutting opal from the rough state you will wear your diamond wheels out very quickly if you use the diamond wheels to remove the rough from your opal. The easiest way to remove the rough excess is by slicing it off your opal thus saving you money on having to replace diamond wheels. This video will show you in the safest manner possible how to slice rough opal. Dangers of slicers These…

Read More