Sorry about the delay... lepidolite often has quartz and or tourmaline crystals as part of its matrix, that could be your yellow.. take a photo with any device you can use with the internet. In the dialogue box you used to post this question, there are two tool bars. The bottom tool bar has seven boxes. Counting from left to right, the sixth box has four icons. Click the first icon of the sixth box, that will give you a drop down with three options The third option will let you upload a photo from your photo library.. Follow the prompts and make sure you hit the save to server button. If that does not work, I'll try to walk you through it.