Professor of Gemology at Hogwarts

"So, let's look at the classification of crystals... Crystal system... Calcite represents comfort, calmness and cooling... Belongs to the hexagonal crystal system... It can connect the individual with the continuous cycle of change in nature, allowing the flow of energy to become Easy..." Gray was explaining to the students a relatively common stone - calcite.

After telling everyone about the crystal system and corresponding planets of the spar, he took out a small box.

"Now, two people take one piece." Gray opened the box. Inside were neatly arranged calcite stones, which he had spent a lot of effort to collect. "Don't underestimate the calcite stone. It is used to restrain the attack of the milky quartz beam." , and calcite itself can mitigate scattering and absorb some of the light that passes through it."

Everyone looked at the silky lustrous calcite and drew the corresponding crystal structure in their notebooks according to Gray's request.

"Oh no--"

Gray heard someone sigh in a low voice, and turned around to see Ron.

Ron and Harry looked up at Gray awkwardly.

"Sorry! Professor Morris, I broke the stone into two pieces!" Ron said, holding a stone in one hand.

"..." Gray was a little worried. The hardness of calcite is not high. This stone cannot be broken by students. How should it be used in other classes later?

"Look, Potter and Weasley, clumsily broke the professor's stone." Malfoy looked at them proudly.

Ron gave Malfoy a hard look.

"You don't need to judge here, Mr. Malfoy." Gray did not choose to ignore him, "Why don't you focus more on the stone in front of you?"

Malfoy seemed to be choked, silently shut his mouth, and turned around without forgetting to glare at Harry and Ron.

Harry and Ron looked up at Gray, their eyes lit up.

"Be careful, Ron," Gray said. "We can't destroy teaching tools, can we?"

"Yes... I think so, I'm sorry."

"Be careful next time." Gray whispered sternly, then raised his head and loudly reminded the class, "Calcite is not very hard, so be careful not to break it!"

At this time, he discovered that Neville, who was sitting behind the two of them, was holding up his quill blankly, looking at the notebook on the table with a surprised look, and did not hear what Gray said at all.

"Have you encountered any difficulties? Mr. Longbottom?"

"Ah! No - no, professor." Neville looked at Gray in panic, "I'm drawing the crystal system..."

"Yeah." Gray saw that Neville's notebook was blank, "Just do your best, you don't need to draw too well, just to help yourself understand it better."

"Okay... okay, Professor." Neville lowered his head, and Gray couldn't see his expression.

Neville has always been timid and timid, so it's not surprising that he was so nervous when communicating in class.Although he seems timid now, he bravely stood up and led Dumbledore's Army against the Death Eaters in the final battle of Hogwarts.

But after a while, Gray found that Neville still looked panicked.

"Mr. Longbottom, are you having any difficulty?"

"No! Professor!"

Neville shrank his neck, put his arms on the table, and began to observe the calcite in his hands. Others were still classifying and drawing crystal systems, but he had already put the notebook under his arms.

"Then let me ask you, which crystal system does calcite belong to?"

"Uh..." Neville lowered his head.

"You can look at your notes, it's okay."

"Four...?" Neville gritted his teeth and looked at Gray desperately.

"Calcite is a hexagonal crystal, Mr. Longbottom."

Neville lowered his head and said nothing.

"What is the normal function of calcite?"

"Restrain...light attacks..."

"The normal function is to comfort, calm and cool down. Its property is that it can disperse light. Restraining the attack of light is an advanced enchantment function."

Neville looked extremely nervous, his neck was hunched, and there was sweat on his forehead. Harry and Ron were a little surprised, as if they had never seen Neville so nervous.

"Don't be nervous, Mr. Longbottom, I don't mean to blame you." Gray comforted, "I just want you to look at the notes more. You closed the notebook early, which made me think you figured out the crystal system. , if you have time, please do more practice after class, okay?"

"Okay...Professor..." Neville seemed to be relieved.

The bell rang, and everyone walked out of the classroom one after another. When they reached the door of the classroom, they all stopped and looked at the shallow pit that had just been made by the beam.

Later, word spread that Professor Gray Morris used the stone to absorb all the light and use the light to break the wall.

It is simply incredible that a wizard can manipulate light, and everyone admires Gray.

The little wizards all looked forward to seeing it again with their own eyes, but he had no choice but to refuse the demonstration again and again. What if the wall collapsed?

Over the next few days, Gray gradually became familiar with his teaching.

The first-year freshmen are full of curiosity, and they have to learn about the corresponding basic knowledge of magic during lectures. Ginny seems to be very interested in crystal science and has a high enthusiasm for learning. There is also "crazy girl" Luna, who no matter what I feel like I'm in a state of wandering heaven all the time.

The sixth grade students are not very enthusiastic about the crystal class. They have already passed the owl exam. Only some who want to continue studying have signed up for this class. Percy is always the straightest in their class.

Gray thought about the Chamber of Secrets incident not long ago. Ginny held Tom Riddle's diary. If she communicated with the diary, her soul would be controlled and she would be manipulated into opening the Chamber of Secrets. This would make her sick every day, and she would almost lose her life in the end. .

He also thought about Voldemort's telling of Ginny's confession in Chamber of Secrets - how she was teased by her brothers and how she had to come to school wearing old robes and carrying old books.

I couldn't help but sigh. At least Ginny seemed to be quite energetic now. I hoped that she could be helped by the people around her and get out of the dark magic diary as soon as possible.

"Percy." Gray kept Percy after class.

"Can I help you, Professor?"

"Ginny Weasley is your sister, right?"

"Yes, Professor, what trouble has she gotten into? I hope you don't mind and I'll remind her."

"She has not caused any trouble. She is very smart and very active in her studies. But Ginny has just entered school. I just remind you that as a brother, you should pay more attention to her and take care of her emotions. She has just come to school and there are many things that are not right. A place to adapt.”

"Don't worry, Professor, I will take good care of my sister."

In the next few days, he met almost all the students, except those in the sixth and seventh grades who did not choose this course.

The demonstration of breaking stones with light also caused a lot of topics. Flitwick even used his spare time during every meal to exchange knowledge about milky quartz and light with him. Gray lamented that he was worthy of being the Head of Ravenclaw. Such a The spirit of seeking knowledge is worth learning from everyone.

The Lockhart elf's practice of turning over in class became a topic that all teachers and students talked about after dinner.

He unleashed a cage of Cornish elves, causing chaos in the classroom, and finally ordered Harry, Ron, and Hermione to clean up the mess while he retreated to his office.

After the elf disaster, Lockhart never brought any living creatures into the classroom again.

The classes of these two new professors were in stark contrast, and the little wizards even privately discussed which professor they liked better.

However, not long after Gray was in a good mood, he encountered something that made him depressed.