Galena sangat mudah lapuk dan jika lapuk, galena akan berubah warna dari kilau perak metalik ke warna abu-abu kusam atau hitam kusam. Ketika terkubur di dalam tanah, galena akan cepat lapuk membentuk anglesite, cerusite, pyromorphite atau mineral pembawa timah lainnya.Your story will appear over a Web page precisely the way you enter it in this art
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Lelehan timah yang tumpah dan mengeras di lantai area kerja dapat dikerik dengan pahat atau obeng minus.We will be able to give Virtually any kind of lead sheets over the U.S.; If you're Not sure regardless of whether a lead sheet is going to get the job done for your undertaking, or have some other queries, our technological crew is accessible to