Colored ink with gold powder is not designed for pen writing, so it is easy to block the pen. If you really want to use pen mathematics, I recommend a lot of ink.

I dare to play with immortals and heroes only when I play with gold powder ink. It doesn't hurt to be shielded. In Taobao, directly ask the store Yongsheng which is the big water gun, and basically recommend the right one for you.

If the gold powder is ok, you can try lamy. I still dare not use Japanese pens indiscriminately.

Then, of course, it is the most suitable gold powder color ink, which is the dip pen for English calligraphy, Lamy joy series, but I have never tried it.

It is also very learned to buy pens and nib separately ... You can buy a novice suit and try it.

There is also a writing brush, which is also very nice. Parallel pen, parallel pen can be inked, I don't know if it is available, you can search it.